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Finding the Third Proportional to 479,622 and 720,669

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Solution

The third proportional to 479,622 and 720,669 is: 1,082,860.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,622 : 720,669 = 720,669 : x
  2. Step 2: Convert to fraction form
    479,622/720,669 = 720,669/x
  3. Step 3: Cross multiply
    479,622x = 720,669 × 720,669
  4. Step 4: Simplify right side
    479,622x = 519,363,807,561
  5. Step 5: Solve for x
    x = 519,363,807,561/479,622
  6. Step 6: Final answer
    x = 1,082,860.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.