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Finding the Fourth Proportional to 487,605.27, 731,552.80 and 234,812.68

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Solution

The fourth proportional to 487,605.27, 731,552.80 and 234,812.68 is: 352,288.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,605.27 : 731,552.80 = 234,812.68 : x
  2. Step 2: Convert to fraction form
    487,605.27/731,552.80 = 234,812.68/x
  3. Step 3: Cross multiply
    487,605.27x = 731,552.80 × 234,812.68
  4. Step 4: Simplify right side
    487,605.27x = 171,777,871,553.86
  5. Step 5: Solve for x
    x = 171,777,871,553.86/487,605.27
  6. Step 6: Final answer
    x = 352,288.79

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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.