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Finding the Third Proportional to 1,221,621.75 and 2,682,517.50

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Solution

The third proportional to 1,221,621.75 and 2,682,517.50 is: 5,890,448.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,621.75 : 2,682,517.50 = 2,682,517.50 : x
  2. Step 2: Convert to fraction form
    1,221,621.75/2,682,517.50 = 2,682,517.50/x
  3. Step 3: Cross multiply
    1,221,621.75x = 2,682,517.50 × 2,682,517.50
  4. Step 4: Simplify right side
    1,221,621.75x = 7,195,900,137,806.25
  5. Step 5: Solve for x
    x = 7,195,900,137,806.25/1,221,621.75
  6. Step 6: Final answer
    x = 5,890,448.61

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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.