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Finding the Third Proportional to 280,833 and 609,285

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Solution

The third proportional to 280,833 and 609,285 is: 1,321,882.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,833 : 609,285 = 609,285 : x
  2. Step 2: Convert to fraction form
    280,833/609,285 = 609,285/x
  3. Step 3: Cross multiply
    280,833x = 609,285 × 609,285
  4. Step 4: Simplify right side
    280,833x = 371,228,211,225
  5. Step 5: Solve for x
    x = 371,228,211,225/280,833
  6. Step 6: Final answer
    x = 1,321,882.44

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.