Home / 428,850.25-591,425.89-267,720.19

Finding the Fourth Proportional to 428,850.25, 591,425.89 and 267,720.19

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Solution

The fourth proportional to 428,850.25, 591,425.89 and 267,720.19 is: 369,211.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,850.25 : 591,425.89 = 267,720.19 : x
  2. Step 2: Convert to fraction form
    428,850.25/591,425.89 = 267,720.19/x
  3. Step 3: Cross multiply
    428,850.25x = 591,425.89 × 267,720.19
  4. Step 4: Simplify right side
    428,850.25x = 158,336,651,641.72
  5. Step 5: Solve for x
    x = 158,336,651,641.72/428,850.25
  6. Step 6: Final answer
    x = 369,211.98

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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.