Home / 428,357.28-591,136.58-237,373.86

Finding the Fourth Proportional to 428,357.28, 591,136.58 and 237,373.86

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Solution

The fourth proportional to 428,357.28, 591,136.58 and 237,373.86 is: 327,577.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,357.28 : 591,136.58 = 237,373.86 : x
  2. Step 2: Convert to fraction form
    428,357.28/591,136.58 = 237,373.86/x
  3. Step 3: Cross multiply
    428,357.28x = 591,136.58 × 237,373.86
  4. Step 4: Simplify right side
    428,357.28x = 140,320,371,781.80
  5. Step 5: Solve for x
    x = 140,320,371,781.80/428,357.28
  6. Step 6: Final answer
    x = 327,577.88

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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.