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Finding the Fourth Proportional to 659,171.52, 988,757.28 and 625,513.59

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Solution

The fourth proportional to 659,171.52, 988,757.28 and 625,513.59 is: 938,270.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,171.52 : 988,757.28 = 625,513.59 : x
  2. Step 2: Convert to fraction form
    659,171.52/988,757.28 = 625,513.59/x
  3. Step 3: Cross multiply
    659,171.52x = 988,757.28 × 625,513.59
  4. Step 4: Simplify right side
    659,171.52x = 618,481,115,851.44
  5. Step 5: Solve for x
    x = 618,481,115,851.44/659,171.52
  6. Step 6: Final answer
    x = 938,270.39

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Double scale
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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.