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Finding the Fourth Proportional to 639,395.92, 882,234.66 and 367,411.27

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Solution

The fourth proportional to 639,395.92, 882,234.66 and 367,411.27 is: 506,951.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,395.92 : 882,234.66 = 367,411.27 : x
  2. Step 2: Convert to fraction form
    639,395.92/882,234.66 = 367,411.27/x
  3. Step 3: Cross multiply
    639,395.92x = 882,234.66 × 367,411.27
  4. Step 4: Simplify right side
    639,395.92x = 324,142,952,825.98
  5. Step 5: Solve for x
    x = 324,142,952,825.98/639,395.92
  6. Step 6: Final answer
    x = 506,951.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.