Home / 428,963.28-591,723.37-267,538.07

Finding the Fourth Proportional to 428,963.28, 591,723.37 and 267,538.07

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Solution

The fourth proportional to 428,963.28, 591,723.37 and 267,538.07 is: 369,049.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,963.28 : 591,723.37 = 267,538.07 : x
  2. Step 2: Convert to fraction form
    428,963.28/591,723.37 = 267,538.07/x
  3. Step 3: Cross multiply
    428,963.28x = 591,723.37 × 267,538.07
  4. Step 4: Simplify right side
    428,963.28x = 158,308,530,531.85
  5. Step 5: Solve for x
    x = 158,308,530,531.85/428,963.28
  6. Step 6: Final answer
    x = 369,049.15

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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.