Home / 764,899.20-1,147,786.20-528,411.60

Finding the Fourth Proportional to 764,899.20, 1,147,786.20 and 528,411.60

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Solution

The fourth proportional to 764,899.20, 1,147,786.20 and 528,411.60 is: 792,919.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,899.20 : 1,147,786.20 = 528,411.60 : x
  2. Step 2: Convert to fraction form
    764,899.20/1,147,786.20 = 528,411.60/x
  3. Step 3: Cross multiply
    764,899.20x = 1,147,786.20 × 528,411.60
  4. Step 4: Simplify right side
    764,899.20x = 606,503,542,399.92
  5. Step 5: Solve for x
    x = 606,503,542,399.92/764,899.20
  6. Step 6: Final answer
    x = 792,919.57

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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.