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Finding the Fourth Proportional to 395,930.62, 593,770.92 and 129,629.89

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Solution

The fourth proportional to 395,930.62, 593,770.92 and 129,629.89 is: 194,403.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,930.62 : 593,770.92 = 129,629.89 : x
  2. Step 2: Convert to fraction form
    395,930.62/593,770.92 = 129,629.89/x
  3. Step 3: Cross multiply
    395,930.62x = 593,770.92 × 129,629.89
  4. Step 4: Simplify right side
    395,930.62x = 76,970,459,044.80
  5. Step 5: Solve for x
    x = 76,970,459,044.80/395,930.62
  6. Step 6: Final answer
    x = 194,403.91

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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.