Home / 347,581.20-479,414.70-318,993.18

Finding the Fourth Proportional to 347,581.20, 479,414.70 and 318,993.18

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Solution

The fourth proportional to 347,581.20, 479,414.70 and 318,993.18 is: 439,983.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,581.20 : 479,414.70 = 318,993.18 : x
  2. Step 2: Convert to fraction form
    347,581.20/479,414.70 = 318,993.18/x
  3. Step 3: Cross multiply
    347,581.20x = 479,414.70 × 318,993.18
  4. Step 4: Simplify right side
    347,581.20x = 152,930,019,691.75
  5. Step 5: Solve for x
    x = 152,930,019,691.75/347,581.20
  6. Step 6: Final answer
    x = 439,983.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.