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Finding the Fourth Proportional to 625,691.75, 864,167.42 and 424,137.83

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Solution

The fourth proportional to 625,691.75, 864,167.42 and 424,137.83 is: 585,793.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,691.75 : 864,167.42 = 424,137.83 : x
  2. Step 2: Convert to fraction form
    625,691.75/864,167.42 = 424,137.83/x
  3. Step 3: Cross multiply
    625,691.75x = 864,167.42 × 424,137.83
  4. Step 4: Simplify right side
    625,691.75x = 366,526,092,154.81
  5. Step 5: Solve for x
    x = 366,526,092,154.81/625,691.75
  6. Step 6: Final answer
    x = 585,793.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.