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Finding the Third Proportional to 722,476 and 1,587,961

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Solution

The third proportional to 722,476 and 1,587,961 is: 3,490,247.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,476 : 1,587,961 = 1,587,961 : x
  2. Step 2: Convert to fraction form
    722,476/1,587,961 = 1,587,961/x
  3. Step 3: Cross multiply
    722,476x = 1,587,961 × 1,587,961
  4. Step 4: Simplify right side
    722,476x = 2,521,620,137,521
  5. Step 5: Solve for x
    x = 2,521,620,137,521/722,476
  6. Step 6: Final answer
    x = 3,490,247.62

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.