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Finding the Third Proportional to 397,666 and 602,291

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Solution

The third proportional to 397,666 and 602,291 is: 912,208.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,666 : 602,291 = 602,291 : x
  2. Step 2: Convert to fraction form
    397,666/602,291 = 602,291/x
  3. Step 3: Cross multiply
    397,666x = 602,291 × 602,291
  4. Step 4: Simplify right side
    397,666x = 362,754,448,681
  5. Step 5: Solve for x
    x = 362,754,448,681/397,666
  6. Step 6: Final answer
    x = 912,208.86

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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.