Finding the Third Proportional to 309,916.13 and 656,464.50
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Solution
The third proportional to 309,916.13 and 656,464.50 is: 1,390,523.45
Step by Step Solution
- Step 1: Write the proportion equation
309,916.13 : 656,464.50 = 656,464.50 : x - Step 2: Convert to fraction form
309,916.13/656,464.50 = 656,464.50/x - Step 3: Cross multiply
309,916.13x = 656,464.50 × 656,464.50 - Step 4: Simplify right side
309,916.13x = 430,945,639,760.25 - Step 5: Solve for x
x = 430,945,639,760.25/309,916.13 - Step 6: Final answer
x = 1,390,523.45
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These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.