Home / 396,983.20-595,647.60-199,991.20

Finding the Fourth Proportional to 396,983.20, 595,647.60 and 199,991.20

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Solution

The fourth proportional to 396,983.20, 595,647.60 and 199,991.20 is: 300,073.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,983.20 : 595,647.60 = 199,991.20 : x
  2. Step 2: Convert to fraction form
    396,983.20/595,647.60 = 199,991.20/x
  3. Step 3: Cross multiply
    396,983.20x = 595,647.60 × 199,991.20
  4. Step 4: Simplify right side
    396,983.20x = 119,124,278,301.12
  5. Step 5: Solve for x
    x = 119,124,278,301.12/396,983.20
  6. Step 6: Final answer
    x = 300,073.85

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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.