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Finding the Third Proportional to 617,163.75 and 818,910

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Solution

The third proportional to 617,163.75 and 818,910 is: 1,086,605.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,163.75 : 818,910 = 818,910 : x
  2. Step 2: Convert to fraction form
    617,163.75/818,910 = 818,910/x
  3. Step 3: Cross multiply
    617,163.75x = 818,910 × 818,910
  4. Step 4: Simplify right side
    617,163.75x = 670,613,588,100
  5. Step 5: Solve for x
    x = 670,613,588,100/617,163.75
  6. Step 6: Final answer
    x = 1,086,605.60

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.