Home / 684.68-944.78-404.92

Finding the Fourth Proportional to 684.68, 944.78 and 404.92

Calculator

Solution

The fourth proportional to 684.68, 944.78 and 404.92 is: 558.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    684.68 : 944.78 = 404.92 : x
  2. Step 2: Convert to fraction form
    684.68/944.78 = 404.92/x
  3. Step 3: Cross multiply
    684.68x = 944.78 × 404.92
  4. Step 4: Simplify right side
    684.68x = 382,560.32
  5. Step 5: Solve for x
    x = 382,560.32/684.68
  6. Step 6: Final answer
    x = 558.74

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.