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Finding the Third Proportional to 397.41 and 604.97

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Solution

The third proportional to 397.41 and 604.97 is: 920.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    397.41 : 604.97 = 604.97 : x
  2. Step 2: Convert to fraction form
    397.41/604.97 = 604.97/x
  3. Step 3: Cross multiply
    397.41x = 604.97 × 604.97
  4. Step 4: Simplify right side
    397.41x = 365,987.19
  5. Step 5: Solve for x
    x = 365,987.19/397.41
  6. Step 6: Final answer
    x = 920.94

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.