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Finding the Fourth Proportional to 629,958.92, 945,331.90 and 255,981.80

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Solution

The fourth proportional to 629,958.92, 945,331.90 and 255,981.80 is: 384,132.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,958.92 : 945,331.90 = 255,981.80 : x
  2. Step 2: Convert to fraction form
    629,958.92/945,331.90 = 255,981.80/x
  3. Step 3: Cross multiply
    629,958.92x = 945,331.90 × 255,981.80
  4. Step 4: Simplify right side
    629,958.92x = 241,987,761,359.42
  5. Step 5: Solve for x
    x = 241,987,761,359.42/629,958.92
  6. Step 6: Final answer
    x = 384,132.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.