Home / 642.27-961.41-495.65

Finding the Fourth Proportional to 642.27, 961.41 and 495.65

Calculator

Solution

The fourth proportional to 642.27, 961.41 and 495.65 is: 741.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    642.27 : 961.41 = 495.65 : x
  2. Step 2: Convert to fraction form
    642.27/961.41 = 495.65/x
  3. Step 3: Cross multiply
    642.27x = 961.41 × 495.65
  4. Step 4: Simplify right side
    642.27x = 476,518.06
  5. Step 5: Solve for x
    x = 476,518.06/642.27
  6. Step 6: Final answer
    x = 741.93

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.