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Finding the Fourth Proportional to 625,654.27, 938,416.82 and 424,541.68

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Solution

The fourth proportional to 625,654.27, 938,416.82 and 424,541.68 is: 636,768.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,654.27 : 938,416.82 = 424,541.68 : x
  2. Step 2: Convert to fraction form
    625,654.27/938,416.82 = 424,541.68/x
  3. Step 3: Cross multiply
    625,654.27x = 938,416.82 × 424,541.68
  4. Step 4: Simplify right side
    625,654.27x = 398,397,052,018.37
  5. Step 5: Solve for x
    x = 398,397,052,018.37/625,654.27
  6. Step 6: Final answer
    x = 636,768.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.