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Finding the Fourth Proportional to 479,411.92, 718,930.97 and 179,729.13

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Solution

The fourth proportional to 479,411.92, 718,930.97 and 179,729.13 is: 269,523.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,411.92 : 718,930.97 = 179,729.13 : x
  2. Step 2: Convert to fraction form
    479,411.92/718,930.97 = 179,729.13/x
  3. Step 3: Cross multiply
    479,411.92x = 718,930.97 × 179,729.13
  4. Step 4: Simplify right side
    479,411.92x = 129,212,837,768.16
  5. Step 5: Solve for x
    x = 129,212,837,768.16/479,411.92
  6. Step 6: Final answer
    x = 269,523.62

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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.