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Finding the Third Proportional to 609.40 and 1,301.38

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Solution

The third proportional to 609.40 and 1,301.38 is: 2,779.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    609.40 : 1,301.38 = 1,301.38 : x
  2. Step 2: Convert to fraction form
    609.40/1,301.38 = 1,301.38/x
  3. Step 3: Cross multiply
    609.40x = 1,301.38 × 1,301.38
  4. Step 4: Simplify right side
    609.40x = 1,693,587.06
  5. Step 5: Solve for x
    x = 1,693,587.06/609.40
  6. Step 6: Final answer
    x = 2,779.11

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.