Home / 487,427.38-731,156.06-132,448.94

Finding the Fourth Proportional to 487,427.38, 731,156.06 and 132,448.94

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Solution

The fourth proportional to 487,427.38, 731,156.06 and 132,448.94 is: 198,677.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,427.38 : 731,156.06 = 132,448.94 : x
  2. Step 2: Convert to fraction form
    487,427.38/731,156.06 = 132,448.94/x
  3. Step 3: Cross multiply
    487,427.38x = 731,156.06 × 132,448.94
  4. Step 4: Simplify right side
    487,427.38x = 96,840,845,121.58
  5. Step 5: Solve for x
    x = 96,840,845,121.58/487,427.38
  6. Step 6: Final answer
    x = 198,677.48

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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.