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Finding the Third Proportional to 807,909 and 1,228,653

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Solution

The third proportional to 807,909 and 1,228,653 is: 1,868,512.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,909 : 1,228,653 = 1,228,653 : x
  2. Step 2: Convert to fraction form
    807,909/1,228,653 = 1,228,653/x
  3. Step 3: Cross multiply
    807,909x = 1,228,653 × 1,228,653
  4. Step 4: Simplify right side
    807,909x = 1,509,588,194,409
  5. Step 5: Solve for x
    x = 1,509,588,194,409/807,909
  6. Step 6: Final answer
    x = 1,868,512.66

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.