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Finding the Fourth Proportional to 701,391.85, 967,920.59 and 379,101.86

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Solution

The fourth proportional to 701,391.85, 967,920.59 and 379,101.86 is: 523,160.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,391.85 : 967,920.59 = 379,101.86 : x
  2. Step 2: Convert to fraction form
    701,391.85/967,920.59 = 379,101.86/x
  3. Step 3: Cross multiply
    701,391.85x = 967,920.59 × 379,101.86
  4. Step 4: Simplify right side
    701,391.85x = 366,940,495,739.15
  5. Step 5: Solve for x
    x = 366,940,495,739.15/701,391.85
  6. Step 6: Final answer
    x = 523,160.48

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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.