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Finding the Third Proportional to 603,715.13 and 816,999.38

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Solution

The third proportional to 603,715.13 and 816,999.38 is: 1,105,634.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,715.13 : 816,999.38 = 816,999.38 : x
  2. Step 2: Convert to fraction form
    603,715.13/816,999.38 = 816,999.38/x
  3. Step 3: Cross multiply
    603,715.13x = 816,999.38 × 816,999.38
  4. Step 4: Simplify right side
    603,715.13x = 667,487,978,750.39
  5. Step 5: Solve for x
    x = 667,487,978,750.39/603,715.13
  6. Step 6: Final answer
    x = 1,105,634.02

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.