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Finding the Third Proportional to 672,696 and 999,456

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Solution

The third proportional to 672,696 and 999,456 is: 1,484,938.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,696 : 999,456 = 999,456 : x
  2. Step 2: Convert to fraction form
    672,696/999,456 = 999,456/x
  3. Step 3: Cross multiply
    672,696x = 999,456 × 999,456
  4. Step 4: Simplify right side
    672,696x = 998,912,295,936
  5. Step 5: Solve for x
    x = 998,912,295,936/672,696
  6. Step 6: Final answer
    x = 1,484,938.66

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.