Home / 428,428.44-591,231.28-237,454.13

Finding the Fourth Proportional to 428,428.44, 591,231.28 and 237,454.13

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Solution

The fourth proportional to 428,428.44, 591,231.28 and 237,454.13 is: 327,686.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,428.44 : 591,231.28 = 237,454.13 : x
  2. Step 2: Convert to fraction form
    428,428.44/591,231.28 = 237,454.13/x
  3. Step 3: Cross multiply
    428,428.44x = 591,231.28 × 237,454.13
  4. Step 4: Simplify right side
    428,428.44x = 140,390,309,221.19
  5. Step 5: Solve for x
    x = 140,390,309,221.19/428,428.44
  6. Step 6: Final answer
    x = 327,686.72

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1.5x scale

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.