Home / 704.80-1,057.23-217.86

Finding the Fourth Proportional to 704.80, 1,057.23 and 217.86

Calculator

Solution

The fourth proportional to 704.80, 1,057.23 and 217.86 is: 326.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    704.80 : 1,057.23 = 217.86 : x
  2. Step 2: Convert to fraction form
    704.80/1,057.23 = 217.86/x
  3. Step 3: Cross multiply
    704.80x = 1,057.23 × 217.86
  4. Step 4: Simplify right side
    704.80x = 230,328.13
  5. Step 5: Solve for x
    x = 230,328.13/704.80
  6. Step 6: Final answer
    x = 326.80

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.