Home / 428,850.44-591,426.36-267,720.44

Finding the Fourth Proportional to 428,850.44, 591,426.36 and 267,720.44

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Solution

The fourth proportional to 428,850.44, 591,426.36 and 267,720.44 is: 369,212.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,850.44 : 591,426.36 = 267,720.44 : x
  2. Step 2: Convert to fraction form
    428,850.44/591,426.36 = 267,720.44/x
  3. Step 3: Cross multiply
    428,850.44x = 591,426.36 × 267,720.44
  4. Step 4: Simplify right side
    428,850.44x = 158,336,925,326.80
  5. Step 5: Solve for x
    x = 158,336,925,326.80/428,850.44
  6. Step 6: Final answer
    x = 369,212.46

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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.