Home / 783.66-1,175.56-321.47

Finding the Fourth Proportional to 783.66, 1,175.56 and 321.47

Calculator

Solution

The fourth proportional to 783.66, 1,175.56 and 321.47 is: 482.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    783.66 : 1,175.56 = 321.47 : x
  2. Step 2: Convert to fraction form
    783.66/1,175.56 = 321.47/x
  3. Step 3: Cross multiply
    783.66x = 1,175.56 × 321.47
  4. Step 4: Simplify right side
    783.66x = 377,900.59
  5. Step 5: Solve for x
    x = 377,900.59/783.66
  6. Step 6: Final answer
    x = 482.23

Related Problems

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.