Finding the Third Proportional to 318,404 and 686,542
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Solution
The third proportional to 318,404 and 686,542 is: 1,480,320.34
Step by Step Solution
- Step 1: Write the proportion equation
318,404 : 686,542 = 686,542 : x - Step 2: Convert to fraction form
318,404/686,542 = 686,542/x - Step 3: Cross multiply
318,404x = 686,542 × 686,542 - Step 4: Simplify right side
318,404x = 471,339,917,764 - Step 5: Solve for x
x = 471,339,917,764/318,404 - Step 6: Final answer
x = 1,480,320.34
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Why These Related Problems?
These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.