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Finding the Fourth Proportional to 522,446.28, 783,665.98 and 143,337.36

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Solution

The fourth proportional to 522,446.28, 783,665.98 and 143,337.36 is: 215,005.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,446.28 : 783,665.98 = 143,337.36 : x
  2. Step 2: Convert to fraction form
    522,446.28/783,665.98 = 143,337.36/x
  3. Step 3: Cross multiply
    522,446.28x = 783,665.98 × 143,337.36
  4. Step 4: Simplify right side
    522,446.28x = 112,328,612,695.01
  5. Step 5: Solve for x
    x = 112,328,612,695.01/522,446.28
  6. Step 6: Final answer
    x = 215,005.10

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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.