Home / 428,371.20-591,155.68-237,387.76

Finding the Fourth Proportional to 428,371.20, 591,155.68 and 237,387.76

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Solution

The fourth proportional to 428,371.20, 591,155.68 and 237,387.76 is: 327,597.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,371.20 : 591,155.68 = 237,387.76 : x
  2. Step 2: Convert to fraction form
    428,371.20/591,155.68 = 237,387.76/x
  3. Step 3: Cross multiply
    428,371.20x = 591,155.68 × 237,387.76
  4. Step 4: Simplify right side
    428,371.20x = 140,333,122,686.48
  5. Step 5: Solve for x
    x = 140,333,122,686.48/428,371.20
  6. Step 6: Final answer
    x = 327,597.01

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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.