Home / 480.88-720.68-396.40

Finding the Fourth Proportional to 480.88, 720.68 and 396.40

Calculator

Solution

The fourth proportional to 480.88, 720.68 and 396.40 is: 594.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    480.88 : 720.68 = 396.40 : x
  2. Step 2: Convert to fraction form
    480.88/720.68 = 396.40/x
  3. Step 3: Cross multiply
    480.88x = 720.68 × 396.40
  4. Step 4: Simplify right side
    480.88x = 285,677.55
  5. Step 5: Solve for x
    x = 285,677.55/480.88
  6. Step 6: Final answer
    x = 594.07

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.