Home / 1,015.05-1,519.23-770.23

Finding the Fourth Proportional to 1,015.05, 1,519.23 and 770.23

Calculator

Solution

The fourth proportional to 1,015.05, 1,519.23 and 770.23 is: 1,152.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,015.05 : 1,519.23 = 770.23 : x
  2. Step 2: Convert to fraction form
    1,015.05/1,519.23 = 770.23/x
  3. Step 3: Cross multiply
    1,015.05x = 1,519.23 × 770.23
  4. Step 4: Simplify right side
    1,015.05x = 1,170,156.52
  5. Step 5: Solve for x
    x = 1,170,156.52/1,015.05
  6. Step 6: Final answer
    x = 1,152.81

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.