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Finding the Third Proportional to 455,340 and 999,256

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Solution

The third proportional to 455,340 and 999,256 is: 2,192,894.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,340 : 999,256 = 999,256 : x
  2. Step 2: Convert to fraction form
    455,340/999,256 = 999,256/x
  3. Step 3: Cross multiply
    455,340x = 999,256 × 999,256
  4. Step 4: Simplify right side
    455,340x = 998,512,553,536
  5. Step 5: Solve for x
    x = 998,512,553,536/455,340
  6. Step 6: Final answer
    x = 2,192,894.44

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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.