Home / 764,360.88-1,147,002.12-266,074.80

Finding the Fourth Proportional to 764,360.88, 1,147,002.12 and 266,074.80

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Solution

The fourth proportional to 764,360.88, 1,147,002.12 and 266,074.80 is: 399,272.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,360.88 : 1,147,002.12 = 266,074.80 : x
  2. Step 2: Convert to fraction form
    764,360.88/1,147,002.12 = 266,074.80/x
  3. Step 3: Cross multiply
    764,360.88x = 1,147,002.12 × 266,074.80
  4. Step 4: Simplify right side
    764,360.88x = 305,188,359,678.58
  5. Step 5: Solve for x
    x = 305,188,359,678.58/764,360.88
  6. Step 6: Final answer
    x = 399,272.60

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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.