Home / 719.79-992.77-484.01

Finding the Fourth Proportional to 719.79, 992.77 and 484.01

Calculator

Solution

The fourth proportional to 719.79, 992.77 and 484.01 is: 667.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    719.79 : 992.77 = 484.01 : x
  2. Step 2: Convert to fraction form
    719.79/992.77 = 484.01/x
  3. Step 3: Cross multiply
    719.79x = 992.77 × 484.01
  4. Step 4: Simplify right side
    719.79x = 480,504.43
  5. Step 5: Solve for x
    x = 480,504.43/719.79
  6. Step 6: Final answer
    x = 667.56

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.