Home / 428,839.50-591,411.15-267,709.44

Finding the Fourth Proportional to 428,839.50, 591,411.15 and 267,709.44

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Solution

The fourth proportional to 428,839.50, 591,411.15 and 267,709.44 is: 369,197.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,839.50 : 591,411.15 = 267,709.44 : x
  2. Step 2: Convert to fraction form
    428,839.50/591,411.15 = 267,709.44/x
  3. Step 3: Cross multiply
    428,839.50x = 591,411.15 × 267,709.44
  4. Step 4: Simplify right side
    428,839.50x = 158,326,347,776.26
  5. Step 5: Solve for x
    x = 158,326,347,776.26/428,839.50
  6. Step 6: Final answer
    x = 369,197.21

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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.