Home / 822,704.20-1,234,142.70-261,608.20

Finding the Fourth Proportional to 822,704.20, 1,234,142.70 and 261,608.20

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Solution

The fourth proportional to 822,704.20, 1,234,142.70 and 261,608.20 is: 392,439.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,704.20 : 1,234,142.70 = 261,608.20 : x
  2. Step 2: Convert to fraction form
    822,704.20/1,234,142.70 = 261,608.20/x
  3. Step 3: Cross multiply
    822,704.20x = 1,234,142.70 × 261,608.20
  4. Step 4: Simplify right side
    822,704.20x = 322,861,850,290.14
  5. Step 5: Solve for x
    x = 322,861,850,290.14/822,704.20
  6. Step 6: Final answer
    x = 392,439.77

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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.