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Finding the Third Proportional to 281,027 and 428,543

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Solution

The third proportional to 281,027 and 428,543 is: 653,492.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,027 : 428,543 = 428,543 : x
  2. Step 2: Convert to fraction form
    281,027/428,543 = 428,543/x
  3. Step 3: Cross multiply
    281,027x = 428,543 × 428,543
  4. Step 4: Simplify right side
    281,027x = 183,649,102,849
  5. Step 5: Solve for x
    x = 183,649,102,849/281,027
  6. Step 6: Final answer
    x = 653,492.74

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.