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Finding the Third Proportional to 311,044 and 682,353

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Solution

The third proportional to 311,044 and 682,353 is: 1,496,912.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,044 : 682,353 = 682,353 : x
  2. Step 2: Convert to fraction form
    311,044/682,353 = 682,353/x
  3. Step 3: Cross multiply
    311,044x = 682,353 × 682,353
  4. Step 4: Simplify right side
    311,044x = 465,605,616,609
  5. Step 5: Solve for x
    x = 465,605,616,609/311,044
  6. Step 6: Final answer
    x = 1,496,912.39

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.