Home / 522,007.20-782,427.60-222,436.80

Finding the Fourth Proportional to 522,007.20, 782,427.60 and 222,436.80

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Solution

The fourth proportional to 522,007.20, 782,427.60 and 222,436.80 is: 333,406.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,007.20 : 782,427.60 = 222,436.80 : x
  2. Step 2: Convert to fraction form
    522,007.20/782,427.60 = 222,436.80/x
  3. Step 3: Cross multiply
    522,007.20x = 782,427.60 × 222,436.80
  4. Step 4: Simplify right side
    522,007.20x = 174,040,691,575.68
  5. Step 5: Solve for x
    x = 174,040,691,575.68/522,007.20
  6. Step 6: Final answer
    x = 333,406.69

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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.