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Finding the Third Proportional to 664,640 and 1,449,580

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Solution

The third proportional to 664,640 and 1,449,580 is: 3,161,534.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,640 : 1,449,580 = 1,449,580 : x
  2. Step 2: Convert to fraction form
    664,640/1,449,580 = 1,449,580/x
  3. Step 3: Cross multiply
    664,640x = 1,449,580 × 1,449,580
  4. Step 4: Simplify right side
    664,640x = 2,101,282,176,400
  5. Step 5: Solve for x
    x = 2,101,282,176,400/664,640
  6. Step 6: Final answer
    x = 3,161,534.33

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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.