Home / 801,351.50-1,105,861.04-438,768.78

Finding the Fourth Proportional to 801,351.50, 1,105,861.04 and 438,768.78

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Solution

The fourth proportional to 801,351.50, 1,105,861.04 and 438,768.78 is: 605,498.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,351.50 : 1,105,861.04 = 438,768.78 : x
  2. Step 2: Convert to fraction form
    801,351.50/1,105,861.04 = 438,768.78/x
  3. Step 3: Cross multiply
    801,351.50x = 1,105,861.04 × 438,768.78
  4. Step 4: Simplify right side
    801,351.50x = 485,217,299,370.33
  5. Step 5: Solve for x
    x = 485,217,299,370.33/801,351.50
  6. Step 6: Final answer
    x = 605,498.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.