Home / 764,987.20-1,147,653.60-449,281.60

Finding the Fourth Proportional to 764,987.20, 1,147,653.60 and 449,281.60

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Solution

The fourth proportional to 764,987.20, 1,147,653.60 and 449,281.60 is: 674,023.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,987.20 : 1,147,653.60 = 449,281.60 : x
  2. Step 2: Convert to fraction form
    764,987.20/1,147,653.60 = 449,281.60/x
  3. Step 3: Cross multiply
    764,987.20x = 1,147,653.60 × 449,281.60
  4. Step 4: Simplify right side
    764,987.20x = 515,619,645,653.76
  5. Step 5: Solve for x
    x = 515,619,645,653.76/764,987.20
  6. Step 6: Final answer
    x = 674,023.89

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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.