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Finding the Third Proportional to 318,879 and 699,958

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Solution

The third proportional to 318,879 and 699,958 is: 1,536,448.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,879 : 699,958 = 699,958 : x
  2. Step 2: Convert to fraction form
    318,879/699,958 = 699,958/x
  3. Step 3: Cross multiply
    318,879x = 699,958 × 699,958
  4. Step 4: Simplify right side
    318,879x = 489,941,201,764
  5. Step 5: Solve for x
    x = 489,941,201,764/318,879
  6. Step 6: Final answer
    x = 1,536,448.63

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These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.