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Finding the Fourth Proportional to 484,640.92, 726,903.66 and 129,682.36

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Solution

The fourth proportional to 484,640.92, 726,903.66 and 129,682.36 is: 194,508.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,640.92 : 726,903.66 = 129,682.36 : x
  2. Step 2: Convert to fraction form
    484,640.92/726,903.66 = 129,682.36/x
  3. Step 3: Cross multiply
    484,640.92x = 726,903.66 × 129,682.36
  4. Step 4: Simplify right side
    484,640.92x = 94,266,582,121.44
  5. Step 5: Solve for x
    x = 94,266,582,121.44/484,640.92
  6. Step 6: Final answer
    x = 194,508.10

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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.