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Finding the Fourth Proportional to 492,761.20, 739,141.80 and 324,471.55

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Solution

The fourth proportional to 492,761.20, 739,141.80 and 324,471.55 is: 486,707.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,761.20 : 739,141.80 = 324,471.55 : x
  2. Step 2: Convert to fraction form
    492,761.20/739,141.80 = 324,471.55/x
  3. Step 3: Cross multiply
    492,761.20x = 739,141.80 × 324,471.55
  4. Step 4: Simplify right side
    492,761.20x = 239,830,485,515.79
  5. Step 5: Solve for x
    x = 239,830,485,515.79/492,761.20
  6. Step 6: Final answer
    x = 486,707.33

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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.