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Finding the Fourth Proportional to 509,811.20, 764,716.80 and 444,857.30

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Solution

The fourth proportional to 509,811.20, 764,716.80 and 444,857.30 is: 667,285.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,811.20 : 764,716.80 = 444,857.30 : x
  2. Step 2: Convert to fraction form
    509,811.20/764,716.80 = 444,857.30/x
  3. Step 3: Cross multiply
    509,811.20x = 764,716.80 × 444,857.30
  4. Step 4: Simplify right side
    509,811.20x = 340,189,850,912.64
  5. Step 5: Solve for x
    x = 340,189,850,912.64/509,811.20
  6. Step 6: Final answer
    x = 667,285.95

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Similar ratio
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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.