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Finding the Fourth Proportional to 522,087.20, 782,839.20 and 222,516.80

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Solution

The fourth proportional to 522,087.20, 782,839.20 and 222,516.80 is: 333,650.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,087.20 : 782,839.20 = 222,516.80 : x
  2. Step 2: Convert to fraction form
    522,087.20/782,839.20 = 222,516.80/x
  3. Step 3: Cross multiply
    522,087.20x = 782,839.20 × 222,516.80
  4. Step 4: Simplify right side
    522,087.20x = 174,194,873,698.56
  5. Step 5: Solve for x
    x = 174,194,873,698.56/522,087.20
  6. Step 6: Final answer
    x = 333,650.92

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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.