Multiply all values together to get their product.There are two main steps to calculating the geometric mean: These formulas are equivalent because of the laws of exponents: taking the nth root of x is exactly the same as raising x to the power of 1/ n. In the second formula, the geometric mean is the product of all values raised to the power of the reciprocal of n.
In the first formula, the geometric mean is the nth root of the product of all values. The symbol pi ( ) is similar to the summation sign sigma (Σ), but instead it tells you to find the product of what follows after it by multiplying them all together. The geometric mean formula can be written in two ways, but they are equivalent mathematically.
