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Finding the Third Proportional to 722,264 and 1,555,520

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Solution

The third proportional to 722,264 and 1,555,520 is: 3,350,080.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,264 : 1,555,520 = 1,555,520 : x
  2. Step 2: Convert to fraction form
    722,264/1,555,520 = 1,555,520/x
  3. Step 3: Cross multiply
    722,264x = 1,555,520 × 1,555,520
  4. Step 4: Simplify right side
    722,264x = 2,419,642,470,400
  5. Step 5: Solve for x
    x = 2,419,642,470,400/722,264
  6. Step 6: Final answer
    x = 3,350,080.40

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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.