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Finding the Third Proportional to 636,993 and 1,386,378

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Solution

The third proportional to 636,993 and 1,386,378 is: 3,017,370.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,993 : 1,386,378 = 1,386,378 : x
  2. Step 2: Convert to fraction form
    636,993/1,386,378 = 1,386,378/x
  3. Step 3: Cross multiply
    636,993x = 1,386,378 × 1,386,378
  4. Step 4: Simplify right side
    636,993x = 1,922,043,958,884
  5. Step 5: Solve for x
    x = 1,922,043,958,884/636,993
  6. Step 6: Final answer
    x = 3,017,370.61

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.