Home / 719.80-1,078.72-536.76

Finding the Fourth Proportional to 719.80, 1,078.72 and 536.76

Calculator

Solution

The fourth proportional to 719.80, 1,078.72 and 536.76 is: 804.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    719.80 : 1,078.72 = 536.76 : x
  2. Step 2: Convert to fraction form
    719.80/1,078.72 = 536.76/x
  3. Step 3: Cross multiply
    719.80x = 1,078.72 × 536.76
  4. Step 4: Simplify right side
    719.80x = 579,013.75
  5. Step 5: Solve for x
    x = 579,013.75/719.80
  6. Step 6: Final answer
    x = 804.41

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.