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Finding the Third Proportional to 666.28 and 1,036.97

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Solution

The third proportional to 666.28 and 1,036.97 is: 1,613.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    666.28 : 1,036.97 = 1,036.97 : x
  2. Step 2: Convert to fraction form
    666.28/1,036.97 = 1,036.97/x
  3. Step 3: Cross multiply
    666.28x = 1,036.97 × 1,036.97
  4. Step 4: Simplify right side
    666.28x = 1,075,304.19
  5. Step 5: Solve for x
    x = 1,075,304.19/666.28
  6. Step 6: Final answer
    x = 1,613.89

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.