Home / 428,380.70-591,168.79-237,397.26

Finding the Fourth Proportional to 428,380.70, 591,168.79 and 237,397.26

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Solution

The fourth proportional to 428,380.70, 591,168.79 and 237,397.26 is: 327,610.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,380.70 : 591,168.79 = 237,397.26 : x
  2. Step 2: Convert to fraction form
    428,380.70/591,168.79 = 237,397.26/x
  3. Step 3: Cross multiply
    428,380.70x = 591,168.79 × 237,397.26
  4. Step 4: Simplify right side
    428,380.70x = 140,341,850,943.52
  5. Step 5: Solve for x
    x = 140,341,850,943.52/428,380.70
  6. Step 6: Final answer
    x = 327,610.12

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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.