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Finding the Fourth Proportional to 685,906.74, 946,236.78 and 444,267

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Solution

The fourth proportional to 685,906.74, 946,236.78 and 444,267 is: 612,884.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,906.74 : 946,236.78 = 444,267 : x
  2. Step 2: Convert to fraction form
    685,906.74/946,236.78 = 444,267/x
  3. Step 3: Cross multiply
    685,906.74x = 946,236.78 × 444,267
  4. Step 4: Simplify right side
    685,906.74x = 420,381,775,540.26
  5. Step 5: Solve for x
    x = 420,381,775,540.26/685,906.74
  6. Step 6: Final answer
    x = 612,884.74

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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.