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Finding the Third Proportional to 918,311 and 2,144,407

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Solution

The third proportional to 918,311 and 2,144,407 is: 5,007,542.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,311 : 2,144,407 = 2,144,407 : x
  2. Step 2: Convert to fraction form
    918,311/2,144,407 = 2,144,407/x
  3. Step 3: Cross multiply
    918,311x = 2,144,407 × 2,144,407
  4. Step 4: Simplify right side
    918,311x = 4,598,481,381,649
  5. Step 5: Solve for x
    x = 4,598,481,381,649/918,311
  6. Step 6: Final answer
    x = 5,007,542.52

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.