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Finding the Third Proportional to 839.53 and 1,252.97

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Solution

The third proportional to 839.53 and 1,252.97 is: 1,870.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    839.53 : 1,252.97 = 1,252.97 : x
  2. Step 2: Convert to fraction form
    839.53/1,252.97 = 1,252.97/x
  3. Step 3: Cross multiply
    839.53x = 1,252.97 × 1,252.97
  4. Step 4: Simplify right side
    839.53x = 1,569,930.69
  5. Step 5: Solve for x
    x = 1,569,930.69/839.53
  6. Step 6: Final answer
    x = 1,870.01

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.