Home / 521,783.28-782,355.04-222,093.20

Finding the Fourth Proportional to 521,783.28, 782,355.04 and 222,093.20

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Solution

The fourth proportional to 521,783.28, 782,355.04 and 222,093.20 is: 333,003.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,783.28 : 782,355.04 = 222,093.20 : x
  2. Step 2: Convert to fraction form
    521,783.28/782,355.04 = 222,093.20/x
  3. Step 3: Cross multiply
    521,783.28x = 782,355.04 × 222,093.20
  4. Step 4: Simplify right side
    521,783.28x = 173,755,734,369.73
  5. Step 5: Solve for x
    x = 173,755,734,369.73/521,783.28
  6. Step 6: Final answer
    x = 333,003.65

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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.