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Finding the Third Proportional to 722,288 and 1,555,576

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Solution

The third proportional to 722,288 and 1,555,576 is: 3,350,210.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,288 : 1,555,576 = 1,555,576 : x
  2. Step 2: Convert to fraction form
    722,288/1,555,576 = 1,555,576/x
  3. Step 3: Cross multiply
    722,288x = 1,555,576 × 1,555,576
  4. Step 4: Simplify right side
    722,288x = 2,419,816,691,776
  5. Step 5: Solve for x
    x = 2,419,816,691,776/722,288
  6. Step 6: Final answer
    x = 3,350,210.29

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.