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Finding the Fourth Proportional to 625,022.86, 862,531.78 and 338,542.06

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Solution

The fourth proportional to 625,022.86, 862,531.78 and 338,542.06 is: 467,188.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,022.86 : 862,531.78 = 338,542.06 : x
  2. Step 2: Convert to fraction form
    625,022.86/862,531.78 = 338,542.06/x
  3. Step 3: Cross multiply
    625,022.86x = 862,531.78 × 338,542.06
  4. Step 4: Simplify right side
    625,022.86x = 292,003,285,616.67
  5. Step 5: Solve for x
    x = 292,003,285,616.67/625,022.86
  6. Step 6: Final answer
    x = 467,188.17

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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.