Home / 428,729.28-591,642.96-237,743.28

Finding the Fourth Proportional to 428,729.28, 591,642.96 and 237,743.28

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Solution

The fourth proportional to 428,729.28, 591,642.96 and 237,743.28 is: 328,083.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,729.28 : 591,642.96 = 237,743.28 : x
  2. Step 2: Convert to fraction form
    428,729.28/591,642.96 = 237,743.28/x
  3. Step 3: Cross multiply
    428,729.28x = 591,642.96 × 237,743.28
  4. Step 4: Simplify right side
    428,729.28x = 140,659,137,899.31
  5. Step 5: Solve for x
    x = 140,659,137,899.31/428,729.28
  6. Step 6: Final answer
    x = 328,083.82

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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.