Home / 428,850.50-591,426.24-267,720.44

Finding the Fourth Proportional to 428,850.50, 591,426.24 and 267,720.44

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Solution

The fourth proportional to 428,850.50, 591,426.24 and 267,720.44 is: 369,212.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,850.50 : 591,426.24 = 267,720.44 : x
  2. Step 2: Convert to fraction form
    428,850.50/591,426.24 = 267,720.44/x
  3. Step 3: Cross multiply
    428,850.50x = 591,426.24 × 267,720.44
  4. Step 4: Simplify right side
    428,850.50x = 158,336,893,200.35
  5. Step 5: Solve for x
    x = 158,336,893,200.35/428,850.50
  6. Step 6: Final answer
    x = 369,212.33

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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.