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Finding the Third Proportional to 662.55 and 1,045.09

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Solution

The third proportional to 662.55 and 1,045.09 is: 1,648.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    662.55 : 1,045.09 = 1,045.09 : x
  2. Step 2: Convert to fraction form
    662.55/1,045.09 = 1,045.09/x
  3. Step 3: Cross multiply
    662.55x = 1,045.09 × 1,045.09
  4. Step 4: Simplify right side
    662.55x = 1,092,212.78
  5. Step 5: Solve for x
    x = 1,092,212.78/662.55
  6. Step 6: Final answer
    x = 1,648.49

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.