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Finding the Fourth Proportional to 392,706.92, 588,985.20 and 108,326.76

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Solution

The fourth proportional to 392,706.92, 588,985.20 and 108,326.76 is: 162,469.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,706.92 : 588,985.20 = 108,326.76 : x
  2. Step 2: Convert to fraction form
    392,706.92/588,985.20 = 108,326.76/x
  3. Step 3: Cross multiply
    392,706.92x = 588,985.20 × 108,326.76
  4. Step 4: Simplify right side
    392,706.92x = 63,802,858,403.95
  5. Step 5: Solve for x
    x = 63,802,858,403.95/392,706.92
  6. Step 6: Final answer
    x = 162,469.40

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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.