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Finding the Third Proportional to 401.44 and 622.97

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Solution

The third proportional to 401.44 and 622.97 is: 966.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    401.44 : 622.97 = 622.97 : x
  2. Step 2: Convert to fraction form
    401.44/622.97 = 622.97/x
  3. Step 3: Cross multiply
    401.44x = 622.97 × 622.97
  4. Step 4: Simplify right side
    401.44x = 388,090.06
  5. Step 5: Solve for x
    x = 388,090.06/401.44
  6. Step 6: Final answer
    x = 966.75

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.