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Finding the Fourth Proportional to 487,654.29, 731,496.29 and 132,676.11

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Solution

The fourth proportional to 487,654.29, 731,496.29 and 132,676.11 is: 199,018.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,654.29 : 731,496.29 = 132,676.11 : x
  2. Step 2: Convert to fraction form
    487,654.29/731,496.29 = 132,676.11/x
  3. Step 3: Cross multiply
    487,654.29x = 731,496.29 × 132,676.11
  4. Step 4: Simplify right side
    487,654.29x = 97,052,081,573.25
  5. Step 5: Solve for x
    x = 97,052,081,573.25/487,654.29
  6. Step 6: Final answer
    x = 199,018.21

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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.