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Finding the Fourth Proportional to 521,849.70, 782,847.45 and 222,327.90

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Solution

The fourth proportional to 521,849.70, 782,847.45 and 222,327.90 is: 333,522.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,849.70 : 782,847.45 = 222,327.90 : x
  2. Step 2: Convert to fraction form
    521,849.70/782,847.45 = 222,327.90/x
  3. Step 3: Cross multiply
    521,849.70x = 782,847.45 × 222,327.90
  4. Step 4: Simplify right side
    521,849.70x = 174,048,829,578.86
  5. Step 5: Solve for x
    x = 174,048,829,578.86/521,849.70
  6. Step 6: Final answer
    x = 333,522.91

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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.