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Finding the Fourth Proportional to 391,962.54, 587,753.52 and 229,900.71

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Solution

The fourth proportional to 391,962.54, 587,753.52 and 229,900.71 is: 344,739.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,962.54 : 587,753.52 = 229,900.71 : x
  2. Step 2: Convert to fraction form
    391,962.54/587,753.52 = 229,900.71/x
  3. Step 3: Cross multiply
    391,962.54x = 587,753.52 × 229,900.71
  4. Step 4: Simplify right side
    391,962.54x = 135,124,952,894.95
  5. Step 5: Solve for x
    x = 135,124,952,894.95/391,962.54
  6. Step 6: Final answer
    x = 344,739.45

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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.