Home / 645.85-891.26-366.07

Finding the Fourth Proportional to 645.85, 891.26 and 366.07

Calculator

Solution

The fourth proportional to 645.85, 891.26 and 366.07 is: 505.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    645.85 : 891.26 = 366.07 : x
  2. Step 2: Convert to fraction form
    645.85/891.26 = 366.07/x
  3. Step 3: Cross multiply
    645.85x = 891.26 × 366.07
  4. Step 4: Simplify right side
    645.85x = 326,261.72
  5. Step 5: Solve for x
    x = 326,261.72/645.85
  6. Step 6: Final answer
    x = 505.17

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.