Home / 428,872.49-591,839.75-237,880.97

Finding the Fourth Proportional to 428,872.49, 591,839.75 and 237,880.97

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Solution

The fourth proportional to 428,872.49, 591,839.75 and 237,880.97 is: 328,273.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,872.49 : 591,839.75 = 237,880.97 : x
  2. Step 2: Convert to fraction form
    428,872.49/591,839.75 = 237,880.97/x
  3. Step 3: Cross multiply
    428,872.49x = 591,839.75 × 237,880.97
  4. Step 4: Simplify right side
    428,872.49x = 140,787,411,450.06
  5. Step 5: Solve for x
    x = 140,787,411,450.06/428,872.49
  6. Step 6: Final answer
    x = 328,273.36

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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.