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Finding the Fourth Proportional to 400,324.32, 600,441.84 and 100,804.80

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Solution

The fourth proportional to 400,324.32, 600,441.84 and 100,804.80 is: 151,195.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,324.32 : 600,441.84 = 100,804.80 : x
  2. Step 2: Convert to fraction form
    400,324.32/600,441.84 = 100,804.80/x
  3. Step 3: Cross multiply
    400,324.32x = 600,441.84 × 100,804.80
  4. Step 4: Simplify right side
    400,324.32x = 60,527,419,592.83
  5. Step 5: Solve for x
    x = 60,527,419,592.83/400,324.32
  6. Step 6: Final answer
    x = 151,195.96

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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.