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Finding the Third Proportional to 262,408 and 543,486

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Solution

The third proportional to 262,408 and 543,486 is: 1,125,640.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,408 : 543,486 = 543,486 : x
  2. Step 2: Convert to fraction form
    262,408/543,486 = 543,486/x
  3. Step 3: Cross multiply
    262,408x = 543,486 × 543,486
  4. Step 4: Simplify right side
    262,408x = 295,377,032,196
  5. Step 5: Solve for x
    x = 295,377,032,196/262,408
  6. Step 6: Final answer
    x = 1,125,640.35

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.