Home / 428,429.80-591,233.18-237,455.52

Finding the Fourth Proportional to 428,429.80, 591,233.18 and 237,455.52

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Solution

The fourth proportional to 428,429.80, 591,233.18 and 237,455.52 is: 327,688.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,429.80 : 591,233.18 = 237,455.52 : x
  2. Step 2: Convert to fraction form
    428,429.80/591,233.18 = 237,455.52/x
  3. Step 3: Cross multiply
    428,429.80x = 591,233.18 × 237,455.52
  4. Step 4: Simplify right side
    428,429.80x = 140,391,582,198.15
  5. Step 5: Solve for x
    x = 140,391,582,198.15/428,429.80
  6. Step 6: Final answer
    x = 327,688.65

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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.