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Finding the Fourth Proportional to 396,689.26, 595,053.02 and 130,443.88

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Solution

The fourth proportional to 396,689.26, 595,053.02 and 130,443.88 is: 195,672.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,689.26 : 595,053.02 = 130,443.88 : x
  2. Step 2: Convert to fraction form
    396,689.26/595,053.02 = 130,443.88/x
  3. Step 3: Cross multiply
    396,689.26x = 595,053.02 × 130,443.88
  4. Step 4: Simplify right side
    396,689.26x = 77,621,024,734.52
  5. Step 5: Solve for x
    x = 77,621,024,734.52/396,689.26
  6. Step 6: Final answer
    x = 195,672.11

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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.