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Finding the Third Proportional to 479.81 and 999.19

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Solution

The third proportional to 479.81 and 999.19 is: 2,080.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    479.81 : 999.19 = 999.19 : x
  2. Step 2: Convert to fraction form
    479.81/999.19 = 999.19/x
  3. Step 3: Cross multiply
    479.81x = 999.19 × 999.19
  4. Step 4: Simplify right side
    479.81x = 998,375.66
  5. Step 5: Solve for x
    x = 998,375.66/479.81
  6. Step 6: Final answer
    x = 2,080.76

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.