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Finding the Third Proportional to 405,336 and 903,876

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Solution

The third proportional to 405,336 and 903,876 is: 2,015,591.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,336 : 903,876 = 903,876 : x
  2. Step 2: Convert to fraction form
    405,336/903,876 = 903,876/x
  3. Step 3: Cross multiply
    405,336x = 903,876 × 903,876
  4. Step 4: Simplify right side
    405,336x = 816,991,823,376
  5. Step 5: Solve for x
    x = 816,991,823,376/405,336
  6. Step 6: Final answer
    x = 2,015,591.57

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.