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Finding the Third Proportional to 479.75 and 993.25

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Solution

The third proportional to 479.75 and 993.25 is: 2,056.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    479.75 : 993.25 = 993.25 : x
  2. Step 2: Convert to fraction form
    479.75/993.25 = 993.25/x
  3. Step 3: Cross multiply
    479.75x = 993.25 × 993.25
  4. Step 4: Simplify right side
    479.75x = 986,545.56
  5. Step 5: Solve for x
    x = 986,545.56/479.75
  6. Step 6: Final answer
    x = 2,056.37

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.