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Finding the Fourth Proportional to 499,167.31, 748,559.59 and 392,760.66

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Solution

The fourth proportional to 499,167.31, 748,559.59 and 392,760.66 is: 588,990.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,167.31 : 748,559.59 = 392,760.66 : x
  2. Step 2: Convert to fraction form
    499,167.31/748,559.59 = 392,760.66/x
  3. Step 3: Cross multiply
    499,167.31x = 748,559.59 × 392,760.66
  4. Step 4: Simplify right side
    499,167.31x = 294,004,758,617.73
  5. Step 5: Solve for x
    x = 294,004,758,617.73/499,167.31
  6. Step 6: Final answer
    x = 588,990.41

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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.