Home / 428,888.12-591,936.56-237,963.02

Finding the Fourth Proportional to 428,888.12, 591,936.56 and 237,963.02

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Solution

The fourth proportional to 428,888.12, 591,936.56 and 237,963.02 is: 328,428.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,888.12 : 591,936.56 = 237,963.02 : x
  2. Step 2: Convert to fraction form
    428,888.12/591,936.56 = 237,963.02/x
  3. Step 3: Cross multiply
    428,888.12x = 591,936.56 × 237,963.02
  4. Step 4: Simplify right side
    428,888.12x = 140,859,008,208.88
  5. Step 5: Solve for x
    x = 140,859,008,208.88/428,888.12
  6. Step 6: Final answer
    x = 328,428.33

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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.