Home / 721.88-995.72-426.94

Finding the Fourth Proportional to 721.88, 995.72 and 426.94

Calculator

Solution

The fourth proportional to 721.88, 995.72 and 426.94 is: 588.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    721.88 : 995.72 = 426.94 : x
  2. Step 2: Convert to fraction form
    721.88/995.72 = 426.94/x
  3. Step 3: Cross multiply
    721.88x = 995.72 × 426.94
  4. Step 4: Simplify right side
    721.88x = 425,111.27
  5. Step 5: Solve for x
    x = 425,111.27/721.88
  6. Step 6: Final answer
    x = 588.90

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.