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Finding the Third Proportional to 491.25 and 994.88

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Solution

The third proportional to 491.25 and 994.88 is: 2,014.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    491.25 : 994.88 = 994.88 : x
  2. Step 2: Convert to fraction form
    491.25/994.88 = 994.88/x
  3. Step 3: Cross multiply
    491.25x = 994.88 × 994.88
  4. Step 4: Simplify right side
    491.25x = 989,776.27
  5. Step 5: Solve for x
    x = 989,776.27/491.25
  6. Step 6: Final answer
    x = 2,014.81

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.