Home / 764,556.60-1,147,709.70-449,191.20

Finding the Fourth Proportional to 764,556.60, 1,147,709.70 and 449,191.20

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Solution

The fourth proportional to 764,556.60, 1,147,709.70 and 449,191.20 is: 674,300.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,556.60 : 1,147,709.70 = 449,191.20 : x
  2. Step 2: Convert to fraction form
    764,556.60/1,147,709.70 = 449,191.20/x
  3. Step 3: Cross multiply
    764,556.60x = 1,147,709.70 × 449,191.20
  4. Step 4: Simplify right side
    764,556.60x = 515,541,097,394.64
  5. Step 5: Solve for x
    x = 515,541,097,394.64/764,556.60
  6. Step 6: Final answer
    x = 674,300.76

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1.5x scale

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.