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Finding the Fourth Proportional to 509,810.70, 764,716.05 and 444,856.80

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Solution

The fourth proportional to 509,810.70, 764,716.05 and 444,856.80 is: 667,285.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,810.70 : 764,716.05 = 444,856.80 : x
  2. Step 2: Convert to fraction form
    509,810.70/764,716.05 = 444,856.80/x
  3. Step 3: Cross multiply
    509,810.70x = 764,716.05 × 444,856.80
  4. Step 4: Simplify right side
    509,810.70x = 340,189,134,911.64
  5. Step 5: Solve for x
    x = 340,189,134,911.64/509,810.70
  6. Step 6: Final answer
    x = 667,285.20

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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.