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Finding the Third Proportional to 383,408.25 and 806,477.25

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Solution

The third proportional to 383,408.25 and 806,477.25 is: 1,696,378.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,408.25 : 806,477.25 = 806,477.25 : x
  2. Step 2: Convert to fraction form
    383,408.25/806,477.25 = 806,477.25/x
  3. Step 3: Cross multiply
    383,408.25x = 806,477.25 × 806,477.25
  4. Step 4: Simplify right side
    383,408.25x = 650,405,554,767.56
  5. Step 5: Solve for x
    x = 650,405,554,767.56/383,408.25
  6. Step 6: Final answer
    x = 1,696,378.61

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.