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Finding the Third Proportional to 455,321.25 and 703,515.38

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Solution

The third proportional to 455,321.25 and 703,515.38 is: 1,086,999.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,321.25 : 703,515.38 = 703,515.38 : x
  2. Step 2: Convert to fraction form
    455,321.25/703,515.38 = 703,515.38/x
  3. Step 3: Cross multiply
    455,321.25x = 703,515.38 × 703,515.38
  4. Step 4: Simplify right side
    455,321.25x = 494,933,882,861.39
  5. Step 5: Solve for x
    x = 494,933,882,861.39/455,321.25
  6. Step 6: Final answer
    x = 1,086,999.31

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.