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Finding the Third Proportional to 427,340 and 618,962

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Solution

The third proportional to 427,340 and 618,962 is: 896,508.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,340 : 618,962 = 618,962 : x
  2. Step 2: Convert to fraction form
    427,340/618,962 = 618,962/x
  3. Step 3: Cross multiply
    427,340x = 618,962 × 618,962
  4. Step 4: Simplify right side
    427,340x = 383,113,957,444
  5. Step 5: Solve for x
    x = 383,113,957,444/427,340
  6. Step 6: Final answer
    x = 896,508.54

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.