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Finding the Fourth Proportional to 655,379.33, 902,872.82 and 625,110.56

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Solution

The fourth proportional to 655,379.33, 902,872.82 and 625,110.56 is: 861,173.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,379.33 : 902,872.82 = 625,110.56 : x
  2. Step 2: Convert to fraction form
    655,379.33/902,872.82 = 625,110.56/x
  3. Step 3: Cross multiply
    655,379.33x = 902,872.82 × 625,110.56
  4. Step 4: Simplify right side
    655,379.33x = 564,395,333,250.61
  5. Step 5: Solve for x
    x = 564,395,333,250.61/655,379.33
  6. Step 6: Final answer
    x = 861,173.53

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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.