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Finding the Third Proportional to 641 and 894

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Solution

The third proportional to 641 and 894 is: 1,246.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    641 : 894 = 894 : x
  2. Step 2: Convert to fraction form
    641/894 = 894/x
  3. Step 3: Cross multiply
    641x = 894 × 894
  4. Step 4: Simplify right side
    641x = 799,236
  5. Step 5: Solve for x
    x = 799,236/641
  6. Step 6: Final answer
    x = 1,246.86

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.