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Finding the Third Proportional to 279,878 and 603,976

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Solution

The third proportional to 279,878 and 603,976 is: 1,303,378.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,878 : 603,976 = 603,976 : x
  2. Step 2: Convert to fraction form
    279,878/603,976 = 603,976/x
  3. Step 3: Cross multiply
    279,878x = 603,976 × 603,976
  4. Step 4: Simplify right side
    279,878x = 364,787,008,576
  5. Step 5: Solve for x
    x = 364,787,008,576/279,878
  6. Step 6: Final answer
    x = 1,303,378.65

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.