Home / 428,379.20-591,166.72-237,395.76

Finding the Fourth Proportional to 428,379.20, 591,166.72 and 237,395.76

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Solution

The fourth proportional to 428,379.20, 591,166.72 and 237,395.76 is: 327,608.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,379.20 : 591,166.72 = 237,395.76 : x
  2. Step 2: Convert to fraction form
    428,379.20/591,166.72 = 237,395.76/x
  3. Step 3: Cross multiply
    428,379.20x = 591,166.72 × 237,395.76
  4. Step 4: Simplify right side
    428,379.20x = 140,340,472,781.11
  5. Step 5: Solve for x
    x = 140,340,472,781.11/428,379.20
  6. Step 6: Final answer
    x = 327,608.05

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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.