Home / 487,689.73-731,460.69-132,731.41

Finding the Fourth Proportional to 487,689.73, 731,460.69 and 132,731.41

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Solution

The fourth proportional to 487,689.73, 731,460.69 and 132,731.41 is: 199,077.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,689.73 : 731,460.69 = 132,731.41 : x
  2. Step 2: Convert to fraction form
    487,689.73/731,460.69 = 132,731.41/x
  3. Step 3: Cross multiply
    487,689.73x = 731,460.69 × 132,731.41
  4. Step 4: Simplify right side
    487,689.73x = 97,087,808,079.62
  5. Step 5: Solve for x
    x = 97,087,808,079.62/487,689.73
  6. Step 6: Final answer
    x = 199,077.00

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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.