Home / 764,622.60-1,147,808.70-449,257.20

Finding the Fourth Proportional to 764,622.60, 1,147,808.70 and 449,257.20

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Solution

The fourth proportional to 764,622.60, 1,147,808.70 and 449,257.20 is: 674,399.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,622.60 : 1,147,808.70 = 449,257.20 : x
  2. Step 2: Convert to fraction form
    764,622.60/1,147,808.70 = 449,257.20/x
  3. Step 3: Cross multiply
    764,622.60x = 1,147,808.70 × 449,257.20
  4. Step 4: Simplify right side
    764,622.60x = 515,661,322,697.64
  5. Step 5: Solve for x
    x = 515,661,322,697.64/764,622.60
  6. Step 6: Final answer
    x = 674,399.79

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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.