Home / 428,318.31-591,070.46-237,330.03

Finding the Fourth Proportional to 428,318.31, 591,070.46 and 237,330.03

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Solution

The fourth proportional to 428,318.31, 591,070.46 and 237,330.03 is: 327,510.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,318.31 : 591,070.46 = 237,330.03 : x
  2. Step 2: Convert to fraction form
    428,318.31/591,070.46 = 237,330.03/x
  3. Step 3: Cross multiply
    428,318.31x = 591,070.46 × 237,330.03
  4. Step 4: Simplify right side
    428,318.31x = 140,278,768,817.26
  5. Step 5: Solve for x
    x = 140,278,768,817.26/428,318.31
  6. Step 6: Final answer
    x = 327,510.56

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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.