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Finding the Third Proportional to 648,849 and 1,393,605

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Solution

The third proportional to 648,849 and 1,393,605 is: 2,993,200.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,849 : 1,393,605 = 1,393,605 : x
  2. Step 2: Convert to fraction form
    648,849/1,393,605 = 1,393,605/x
  3. Step 3: Cross multiply
    648,849x = 1,393,605 × 1,393,605
  4. Step 4: Simplify right side
    648,849x = 1,942,134,896,025
  5. Step 5: Solve for x
    x = 1,942,134,896,025/648,849
  6. Step 6: Final answer
    x = 2,993,200.11

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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.