Home / 428,856.50-591,434.70-267,726.44

Finding the Fourth Proportional to 428,856.50, 591,434.70 and 267,726.44

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Solution

The fourth proportional to 428,856.50, 591,434.70 and 267,726.44 is: 369,220.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,856.50 : 591,434.70 = 267,726.44 : x
  2. Step 2: Convert to fraction form
    428,856.50/591,434.70 = 267,726.44/x
  3. Step 3: Cross multiply
    428,856.50x = 591,434.70 × 267,726.44
  4. Step 4: Simplify right side
    428,856.50x = 158,342,706,723.47
  5. Step 5: Solve for x
    x = 158,342,706,723.47/428,856.50
  6. Step 6: Final answer
    x = 369,220.72

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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.