Home / 428,429.30-591,232.50-237,455.02

Finding the Fourth Proportional to 428,429.30, 591,232.50 and 237,455.02

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Solution

The fourth proportional to 428,429.30, 591,232.50 and 237,455.02 is: 327,687.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,429.30 : 591,232.50 = 237,455.02 : x
  2. Step 2: Convert to fraction form
    428,429.30/591,232.50 = 237,455.02/x
  3. Step 3: Cross multiply
    428,429.30x = 591,232.50 × 237,455.02
  4. Step 4: Simplify right side
    428,429.30x = 140,391,125,112.15
  5. Step 5: Solve for x
    x = 140,391,125,112.15/428,429.30
  6. Step 6: Final answer
    x = 327,687.96

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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.