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Finding the Third Proportional to 295,377 and 647,939

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Solution

The third proportional to 295,377 and 647,939 is: 1,421,319.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,377 : 647,939 = 647,939 : x
  2. Step 2: Convert to fraction form
    295,377/647,939 = 647,939/x
  3. Step 3: Cross multiply
    295,377x = 647,939 × 647,939
  4. Step 4: Simplify right side
    295,377x = 419,824,947,721
  5. Step 5: Solve for x
    x = 419,824,947,721/295,377
  6. Step 6: Final answer
    x = 1,421,319.02

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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.