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Finding the Third Proportional to 397,665.75 and 602,290.13

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Solution

The third proportional to 397,665.75 and 602,290.13 is: 912,206.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,665.75 : 602,290.13 = 602,290.13 : x
  2. Step 2: Convert to fraction form
    397,665.75/602,290.13 = 602,290.13/x
  3. Step 3: Cross multiply
    397,665.75x = 602,290.13 × 602,290.13
  4. Step 4: Simplify right side
    397,665.75x = 362,753,394,672.52
  5. Step 5: Solve for x
    x = 362,753,394,672.52/397,665.75
  6. Step 6: Final answer
    x = 912,206.78

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.