Home / 967.20-1,450-480.59

Finding the Fourth Proportional to 967.20, 1,450 and 480.59

Calculator

Solution

The fourth proportional to 967.20, 1,450 and 480.59 is: 720.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    967.20 : 1,450 = 480.59 : x
  2. Step 2: Convert to fraction form
    967.20/1,450 = 480.59/x
  3. Step 3: Cross multiply
    967.20x = 1,450 × 480.59
  4. Step 4: Simplify right side
    967.20x = 696,855.50
  5. Step 5: Solve for x
    x = 696,855.50/967.20
  6. Step 6: Final answer
    x = 720.49

Related Problems

Find fourth proportional to 483.60, 725 and 240.30
Half scale
Find fourth proportional to 1,934.40, 2,900 and 961.18
Double scale
Find fourth proportional to 968.20, 1,451.50 and 481.59
Similar ratio
Find fourth proportional to 1,450.80, 2,175 and 720.89
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.