Home / 428,428.30-591,231.12-237,454.02

Finding the Fourth Proportional to 428,428.30, 591,231.12 and 237,454.02

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Solution

The fourth proportional to 428,428.30, 591,231.12 and 237,454.02 is: 327,686.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,428.30 : 591,231.12 = 237,454.02 : x
  2. Step 2: Convert to fraction form
    428,428.30/591,231.12 = 237,454.02/x
  3. Step 3: Cross multiply
    428,428.30x = 591,231.12 × 237,454.02
  4. Step 4: Simplify right side
    428,428.30x = 140,390,206,193.10
  5. Step 5: Solve for x
    x = 140,390,206,193.10/428,428.30
  6. Step 6: Final answer
    x = 327,686.58

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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.