Home / 419,287.10-578,626.60-228,310.96

Finding the Fourth Proportional to 419,287.10, 578,626.60 and 228,310.96

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Solution

The fourth proportional to 419,287.10, 578,626.60 and 228,310.96 is: 315,074.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,287.10 : 578,626.60 = 228,310.96 : x
  2. Step 2: Convert to fraction form
    419,287.10/578,626.60 = 228,310.96/x
  3. Step 3: Cross multiply
    419,287.10x = 578,626.60 × 228,310.96
  4. Step 4: Simplify right side
    419,287.10x = 132,106,794,527.54
  5. Step 5: Solve for x
    x = 132,106,794,527.54/419,287.10
  6. Step 6: Final answer
    x = 315,074.79

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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.