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Finding the Fourth Proportional to 764,754.60, 1,147,153.68 and 259,317

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Solution

The fourth proportional to 764,754.60, 1,147,153.68 and 259,317 is: 388,982.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,754.60 : 1,147,153.68 = 259,317 : x
  2. Step 2: Convert to fraction form
    764,754.60/1,147,153.68 = 259,317/x
  3. Step 3: Cross multiply
    764,754.60x = 1,147,153.68 × 259,317
  4. Step 4: Simplify right side
    764,754.60x = 297,476,450,836.56
  5. Step 5: Solve for x
    x = 297,476,450,836.56/764,754.60
  6. Step 6: Final answer
    x = 388,982.89

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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.