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Finding the Third Proportional to 878,022 and 1,780,266

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Solution

The third proportional to 878,022 and 1,780,266 is: 3,609,644.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,022 : 1,780,266 = 1,780,266 : x
  2. Step 2: Convert to fraction form
    878,022/1,780,266 = 1,780,266/x
  3. Step 3: Cross multiply
    878,022x = 1,780,266 × 1,780,266
  4. Step 4: Simplify right side
    878,022x = 3,169,347,030,756
  5. Step 5: Solve for x
    x = 3,169,347,030,756/878,022
  6. Step 6: Final answer
    x = 3,609,644.21

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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.