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Finding the Third Proportional to 661,731 and 1,449,486

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Solution

The third proportional to 661,731 and 1,449,486 is: 3,175,020.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,731 : 1,449,486 = 1,449,486 : x
  2. Step 2: Convert to fraction form
    661,731/1,449,486 = 1,449,486/x
  3. Step 3: Cross multiply
    661,731x = 1,449,486 × 1,449,486
  4. Step 4: Simplify right side
    661,731x = 2,101,009,664,196
  5. Step 5: Solve for x
    x = 2,101,009,664,196/661,731
  6. Step 6: Final answer
    x = 3,175,020.76

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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.