Home / 608.09-912.54-445.28

Finding the Fourth Proportional to 608.09, 912.54 and 445.28

Calculator

Solution

The fourth proportional to 608.09, 912.54 and 445.28 is: 668.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.09 : 912.54 = 445.28 : x
  2. Step 2: Convert to fraction form
    608.09/912.54 = 445.28/x
  3. Step 3: Cross multiply
    608.09x = 912.54 × 445.28
  4. Step 4: Simplify right side
    608.09x = 406,335.81
  5. Step 5: Solve for x
    x = 406,335.81/608.09
  6. Step 6: Final answer
    x = 668.22

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.