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Finding the Third Proportional to 809,653 and 1,188,208

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Solution

The third proportional to 809,653 and 1,188,208 is: 1,743,757.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,653 : 1,188,208 = 1,188,208 : x
  2. Step 2: Convert to fraction form
    809,653/1,188,208 = 1,188,208/x
  3. Step 3: Cross multiply
    809,653x = 1,188,208 × 1,188,208
  4. Step 4: Simplify right side
    809,653x = 1,411,838,251,264
  5. Step 5: Solve for x
    x = 1,411,838,251,264/809,653
  6. Step 6: Final answer
    x = 1,743,757.20

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.