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Finding the Third Proportional to 313,104 and 676,221

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Solution

The third proportional to 313,104 and 676,221 is: 1,460,456.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,104 : 676,221 = 676,221 : x
  2. Step 2: Convert to fraction form
    313,104/676,221 = 676,221/x
  3. Step 3: Cross multiply
    313,104x = 676,221 × 676,221
  4. Step 4: Simplify right side
    313,104x = 457,274,840,841
  5. Step 5: Solve for x
    x = 457,274,840,841/313,104
  6. Step 6: Final answer
    x = 1,460,456.72

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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.