Home / 499.23-689.09-324.59

Finding the Fourth Proportional to 499.23, 689.09 and 324.59

Calculator

Solution

The fourth proportional to 499.23, 689.09 and 324.59 is: 448.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    499.23 : 689.09 = 324.59 : x
  2. Step 2: Convert to fraction form
    499.23/689.09 = 324.59/x
  3. Step 3: Cross multiply
    499.23x = 689.09 × 324.59
  4. Step 4: Simplify right side
    499.23x = 223,666.65
  5. Step 5: Solve for x
    x = 223,666.65/499.23
  6. Step 6: Final answer
    x = 448.02

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.