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Finding the Third Proportional to 234,772 and 489,000

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Solution

The third proportional to 234,772 and 489,000 is: 1,018,524.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,772 : 489,000 = 489,000 : x
  2. Step 2: Convert to fraction form
    234,772/489,000 = 489,000/x
  3. Step 3: Cross multiply
    234,772x = 489,000 × 489,000
  4. Step 4: Simplify right side
    234,772x = 239,121,000,000
  5. Step 5: Solve for x
    x = 239,121,000,000/234,772
  6. Step 6: Final answer
    x = 1,018,524.36

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.