Home / 433.68-646.79-369.09

Finding the Fourth Proportional to 433.68, 646.79 and 369.09

Calculator

Solution

The fourth proportional to 433.68, 646.79 and 369.09 is: 550.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    433.68 : 646.79 = 369.09 : x
  2. Step 2: Convert to fraction form
    433.68/646.79 = 369.09/x
  3. Step 3: Cross multiply
    433.68x = 646.79 × 369.09
  4. Step 4: Simplify right side
    433.68x = 238,721.88
  5. Step 5: Solve for x
    x = 238,721.88/433.68
  6. Step 6: Final answer
    x = 550.46

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.