Home / 722.40-996.86-411.88

Finding the Fourth Proportional to 722.40, 996.86 and 411.88

Calculator

Solution

The fourth proportional to 722.40, 996.86 and 411.88 is: 568.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    722.40 : 996.86 = 411.88 : x
  2. Step 2: Convert to fraction form
    722.40/996.86 = 411.88/x
  3. Step 3: Cross multiply
    722.40x = 996.86 × 411.88
  4. Step 4: Simplify right side
    722.40x = 410,586.70
  5. Step 5: Solve for x
    x = 410,586.70/722.40
  6. Step 6: Final answer
    x = 568.36

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.