Home / 569.81-786.33-321.13

Finding the Fourth Proportional to 569.81, 786.33 and 321.13

Calculator

Solution

The fourth proportional to 569.81, 786.33 and 321.13 is: 443.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    569.81 : 786.33 = 321.13 : x
  2. Step 2: Convert to fraction form
    569.81/786.33 = 321.13/x
  3. Step 3: Cross multiply
    569.81x = 786.33 × 321.13
  4. Step 4: Simplify right side
    569.81x = 252,514.15
  5. Step 5: Solve for x
    x = 252,514.15/569.81
  6. Step 6: Final answer
    x = 443.16

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.