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Finding the Fourth Proportional to 479,593.52, 719,389.80 and 142,632.80

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Solution

The fourth proportional to 479,593.52, 719,389.80 and 142,632.80 is: 213,949.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,593.52 : 719,389.80 = 142,632.80 : x
  2. Step 2: Convert to fraction form
    479,593.52/719,389.80 = 142,632.80/x
  3. Step 3: Cross multiply
    479,593.52x = 719,389.80 × 142,632.80
  4. Step 4: Simplify right side
    479,593.52x = 102,608,581,465.44
  5. Step 5: Solve for x
    x = 102,608,581,465.44/479,593.52
  6. Step 6: Final answer
    x = 213,949.06

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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.