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Finding the Third Proportional to 408,479 and 888,947

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Solution

The third proportional to 408,479 and 888,947 is: 1,934,559.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,479 : 888,947 = 888,947 : x
  2. Step 2: Convert to fraction form
    408,479/888,947 = 888,947/x
  3. Step 3: Cross multiply
    408,479x = 888,947 × 888,947
  4. Step 4: Simplify right side
    408,479x = 790,226,768,809
  5. Step 5: Solve for x
    x = 790,226,768,809/408,479
  6. Step 6: Final answer
    x = 1,934,559.11

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.