Home / 587.87-811.22-339.20

Finding the Fourth Proportional to 587.87, 811.22 and 339.20

Calculator

Solution

The fourth proportional to 587.87, 811.22 and 339.20 is: 468.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    587.87 : 811.22 = 339.20 : x
  2. Step 2: Convert to fraction form
    587.87/811.22 = 339.20/x
  3. Step 3: Cross multiply
    587.87x = 811.22 × 339.20
  4. Step 4: Simplify right side
    587.87x = 275,162.62
  5. Step 5: Solve for x
    x = 275,162.62/587.87
  6. Step 6: Final answer
    x = 468.07

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.