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Finding the Third Proportional to 518,442 and 800,631

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Solution

The third proportional to 518,442 and 800,631 is: 1,236,416.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,442 : 800,631 = 800,631 : x
  2. Step 2: Convert to fraction form
    518,442/800,631 = 800,631/x
  3. Step 3: Cross multiply
    518,442x = 800,631 × 800,631
  4. Step 4: Simplify right side
    518,442x = 641,009,998,161
  5. Step 5: Solve for x
    x = 641,009,998,161/518,442
  6. Step 6: Final answer
    x = 1,236,416.03

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.