Home / 721-995-410.50

Finding the Fourth Proportional to 721, 995 and 410.50

Calculator

Solution

The fourth proportional to 721, 995 and 410.50 is: 566.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    721 : 995 = 410.50 : x
  2. Step 2: Convert to fraction form
    721/995 = 410.50/x
  3. Step 3: Cross multiply
    721x = 995 × 410.50
  4. Step 4: Simplify right side
    721x = 408,447.50
  5. Step 5: Solve for x
    x = 408,447.50/721
  6. Step 6: Final answer
    x = 566.50

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.