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Finding the Fourth Proportional to 701,906.69, 968,631.22 and 379,616.78

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Solution

The fourth proportional to 701,906.69, 968,631.22 and 379,616.78 is: 523,871.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,906.69 : 968,631.22 = 379,616.78 : x
  2. Step 2: Convert to fraction form
    701,906.69/968,631.22 = 379,616.78/x
  3. Step 3: Cross multiply
    701,906.69x = 968,631.22 × 379,616.78
  4. Step 4: Simplify right side
    701,906.69x = 367,708,662,845.79
  5. Step 5: Solve for x
    x = 367,708,662,845.79/701,906.69
  6. Step 6: Final answer
    x = 523,871.15

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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.