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Finding the Fourth Proportional to 479,686.52, 719,519.91 and 159,861.61

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Solution

The fourth proportional to 479,686.52, 719,519.91 and 159,861.61 is: 239,789.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,686.52 : 719,519.91 = 159,861.61 : x
  2. Step 2: Convert to fraction form
    479,686.52/719,519.91 = 159,861.61/x
  3. Step 3: Cross multiply
    479,686.52x = 719,519.91 × 159,861.61
  4. Step 4: Simplify right side
    479,686.52x = 115,023,611,539.57
  5. Step 5: Solve for x
    x = 115,023,611,539.57/479,686.52
  6. Step 6: Final answer
    x = 239,789.13

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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.