Finding the Third Proportional to 308,916 and 721,715
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Solution
The third proportional to 308,916 and 721,715 is: 1,686,130.02
Step by Step Solution
- Step 1: Write the proportion equation
308,916 : 721,715 = 721,715 : x - Step 2: Convert to fraction form
308,916/721,715 = 721,715/x - Step 3: Cross multiply
308,916x = 721,715 × 721,715 - Step 4: Simplify right side
308,916x = 520,872,541,225 - Step 5: Solve for x
x = 520,872,541,225/308,916 - Step 6: Final answer
x = 1,686,130.02
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These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.