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Finding the Third Proportional to 725.63 and 1,434.38

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Solution

The third proportional to 725.63 and 1,434.38 is: 2,835.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    725.63 : 1,434.38 = 1,434.38 : x
  2. Step 2: Convert to fraction form
    725.63/1,434.38 = 1,434.38/x
  3. Step 3: Cross multiply
    725.63x = 1,434.38 × 1,434.38
  4. Step 4: Simplify right side
    725.63x = 2,057,431.64
  5. Step 5: Solve for x
    x = 2,057,431.64/725.63
  6. Step 6: Final answer
    x = 2,835.39

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Why These Related Problems?

These problems maintain the same ratio (1.98) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.