Home / 482.88-724-328

Finding the Fourth Proportional to 482.88, 724 and 328

Calculator

Solution

The fourth proportional to 482.88, 724 and 328 is: 491.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    482.88 : 724 = 328 : x
  2. Step 2: Convert to fraction form
    482.88/724 = 328/x
  3. Step 3: Cross multiply
    482.88x = 724 × 328
  4. Step 4: Simplify right side
    482.88x = 237,472
  5. Step 5: Solve for x
    x = 237,472/482.88
  6. Step 6: Final answer
    x = 491.78

Related Problems

Find fourth proportional to 241.44, 362 and 164
Half scale
Find fourth proportional to 965.76, 1,448 and 656
Double scale
Find fourth proportional to 483.88, 725.50 and 329
Similar ratio
Find fourth proportional to 724.32, 1,086 and 492
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.