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Finding the Third Proportional to 305,775 and 648,552

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Solution

The third proportional to 305,775 and 648,552 is: 1,375,585.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,775 : 648,552 = 648,552 : x
  2. Step 2: Convert to fraction form
    305,775/648,552 = 648,552/x
  3. Step 3: Cross multiply
    305,775x = 648,552 × 648,552
  4. Step 4: Simplify right side
    305,775x = 420,619,696,704
  5. Step 5: Solve for x
    x = 420,619,696,704/305,775
  6. Step 6: Final answer
    x = 1,375,585.63

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.