Home / 428,948.31-591,949.37-237,961.70

Finding the Fourth Proportional to 428,948.31, 591,949.37 and 237,961.70

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Solution

The fourth proportional to 428,948.31, 591,949.37 and 237,961.70 is: 328,387.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,948.31 : 591,949.37 = 237,961.70 : x
  2. Step 2: Convert to fraction form
    428,948.31/591,949.37 = 237,961.70/x
  3. Step 3: Cross multiply
    428,948.31x = 591,949.37 × 237,961.70
  4. Step 4: Simplify right side
    428,948.31x = 140,861,276,915.56
  5. Step 5: Solve for x
    x = 140,861,276,915.56/428,948.31
  6. Step 6: Final answer
    x = 328,387.53

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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.