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Finding the Fourth Proportional to 482,765.80, 724,148.70 and 127,815.70

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Solution

The fourth proportional to 482,765.80, 724,148.70 and 127,815.70 is: 191,723.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,765.80 : 724,148.70 = 127,815.70 : x
  2. Step 2: Convert to fraction form
    482,765.80/724,148.70 = 127,815.70/x
  3. Step 3: Cross multiply
    482,765.80x = 724,148.70 × 127,815.70
  4. Step 4: Simplify right side
    482,765.80x = 92,557,572,994.59
  5. Step 5: Solve for x
    x = 92,557,572,994.59/482,765.80
  6. Step 6: Final answer
    x = 191,723.55

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Similar ratio
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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.