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Finding the Fourth Proportional to 701,445.87, 967,995.09 and 379,155.78

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Solution

The fourth proportional to 701,445.87, 967,995.09 and 379,155.78 is: 523,234.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,445.87 : 967,995.09 = 379,155.78 : x
  2. Step 2: Convert to fraction form
    701,445.87/967,995.09 = 379,155.78/x
  3. Step 3: Cross multiply
    701,445.87x = 967,995.09 × 379,155.78
  4. Step 4: Simplify right side
    701,445.87x = 367,020,933,385.12
  5. Step 5: Solve for x
    x = 367,020,933,385.12/701,445.87
  6. Step 6: Final answer
    x = 523,234.86

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1.5x scale

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.