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Finding the Fourth Proportional to 654,139.28, 902,455.89 and 482,469.32

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Solution

The fourth proportional to 654,139.28, 902,455.89 and 482,469.32 is: 665,618.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,139.28 : 902,455.89 = 482,469.32 : x
  2. Step 2: Convert to fraction form
    654,139.28/902,455.89 = 482,469.32/x
  3. Step 3: Cross multiply
    654,139.28x = 902,455.89 × 482,469.32
  4. Step 4: Simplify right side
    654,139.28x = 435,407,279,578.30
  5. Step 5: Solve for x
    x = 435,407,279,578.30/654,139.28
  6. Step 6: Final answer
    x = 665,618.61

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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.