Home / 764,423.10-1,147,509.45-449,057.70

Finding the Fourth Proportional to 764,423.10, 1,147,509.45 and 449,057.70

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Solution

The fourth proportional to 764,423.10, 1,147,509.45 and 449,057.70 is: 674,100.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,423.10 : 1,147,509.45 = 449,057.70 : x
  2. Step 2: Convert to fraction form
    764,423.10/1,147,509.45 = 449,057.70/x
  3. Step 3: Cross multiply
    764,423.10x = 1,147,509.45 × 449,057.70
  4. Step 4: Simplify right side
    764,423.10x = 515,297,954,345.27
  5. Step 5: Solve for x
    x = 515,297,954,345.27/764,423.10
  6. Step 6: Final answer
    x = 674,100.45

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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.