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Finding the Fourth Proportional to 654,139.53, 902,456.24 and 482,469.57

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Solution

The fourth proportional to 654,139.53, 902,456.24 and 482,469.57 is: 665,618.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,139.53 : 902,456.24 = 482,469.57 : x
  2. Step 2: Convert to fraction form
    654,139.53/902,456.24 = 482,469.57/x
  3. Step 3: Cross multiply
    654,139.53x = 902,456.24 × 482,469.57
  4. Step 4: Simplify right side
    654,139.53x = 435,407,671,644.27
  5. Step 5: Solve for x
    x = 435,407,671,644.27/654,139.53
  6. Step 6: Final answer
    x = 665,618.96

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1.5x scale

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.