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Finding the Third Proportional to 435,342.38 and 672,715.13

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Solution

The third proportional to 435,342.38 and 672,715.13 is: 1,039,516.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,342.38 : 672,715.13 = 672,715.13 : x
  2. Step 2: Convert to fraction form
    435,342.38/672,715.13 = 672,715.13/x
  3. Step 3: Cross multiply
    435,342.38x = 672,715.13 × 672,715.13
  4. Step 4: Simplify right side
    435,342.38x = 452,545,639,403.77
  5. Step 5: Solve for x
    x = 452,545,639,403.77/435,342.38
  6. Step 6: Final answer
    x = 1,039,516.63

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.