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Finding the Third Proportional to 808,668 and 1,268,406

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Solution

The third proportional to 808,668 and 1,268,406 is: 1,989,510.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,668 : 1,268,406 = 1,268,406 : x
  2. Step 2: Convert to fraction form
    808,668/1,268,406 = 1,268,406/x
  3. Step 3: Cross multiply
    808,668x = 1,268,406 × 1,268,406
  4. Step 4: Simplify right side
    808,668x = 1,608,853,780,836
  5. Step 5: Solve for x
    x = 1,608,853,780,836/808,668
  6. Step 6: Final answer
    x = 1,989,510.88

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.