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Finding the Third Proportional to 401,692 and 622,374

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Solution

The third proportional to 401,692 and 622,374 is: 964,294.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,692 : 622,374 = 622,374 : x
  2. Step 2: Convert to fraction form
    401,692/622,374 = 622,374/x
  3. Step 3: Cross multiply
    401,692x = 622,374 × 622,374
  4. Step 4: Simplify right side
    401,692x = 387,349,395,876
  5. Step 5: Solve for x
    x = 387,349,395,876/401,692
  6. Step 6: Final answer
    x = 964,294.52

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.