Home / 878.68-1,318.19-262.37

Finding the Fourth Proportional to 878.68, 1,318.19 and 262.37

Calculator

Solution

The fourth proportional to 878.68, 1,318.19 and 262.37 is: 393.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    878.68 : 1,318.19 = 262.37 : x
  2. Step 2: Convert to fraction form
    878.68/1,318.19 = 262.37/x
  3. Step 3: Cross multiply
    878.68x = 1,318.19 × 262.37
  4. Step 4: Simplify right side
    878.68x = 345,858.08
  5. Step 5: Solve for x
    x = 345,858.08/878.68
  6. Step 6: Final answer
    x = 393.61

Related Problems

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.