Home / 428,972.98-591,935.25-237,938.74

Finding the Fourth Proportional to 428,972.98, 591,935.25 and 237,938.74

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Solution

The fourth proportional to 428,972.98, 591,935.25 and 237,938.74 is: 328,329.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,972.98 : 591,935.25 = 237,938.74 : x
  2. Step 2: Convert to fraction form
    428,972.98/591,935.25 = 237,938.74/x
  3. Step 3: Cross multiply
    428,972.98x = 591,935.25 × 237,938.74
  4. Step 4: Simplify right side
    428,972.98x = 140,844,327,546.59
  5. Step 5: Solve for x
    x = 140,844,327,546.59/428,972.98
  6. Step 6: Final answer
    x = 328,329.14

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1.5x scale

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.