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Finding the Fourth Proportional to 539,079.96, 807,964.02 and 381,353.88

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Solution

The fourth proportional to 539,079.96, 807,964.02 and 381,353.88 is: 571,566.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,079.96 : 807,964.02 = 381,353.88 : x
  2. Step 2: Convert to fraction form
    539,079.96/807,964.02 = 381,353.88/x
  3. Step 3: Cross multiply
    539,079.96x = 807,964.02 × 381,353.88
  4. Step 4: Simplify right side
    539,079.96x = 308,120,213,927.40
  5. Step 5: Solve for x
    x = 308,120,213,927.40/539,079.96
  6. Step 6: Final answer
    x = 571,566.81

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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.