Home / 762.88-1,144.16-519.52

Finding the Fourth Proportional to 762.88, 1,144.16 and 519.52

Calculator

Solution

The fourth proportional to 762.88, 1,144.16 and 519.52 is: 779.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    762.88 : 1,144.16 = 519.52 : x
  2. Step 2: Convert to fraction form
    762.88/1,144.16 = 519.52/x
  3. Step 3: Cross multiply
    762.88x = 1,144.16 × 519.52
  4. Step 4: Simplify right side
    762.88x = 594,414.00
  5. Step 5: Solve for x
    x = 594,414.00/762.88
  6. Step 6: Final answer
    x = 779.17

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.