Home / 761.33-1,140.91-413.91

Finding the Fourth Proportional to 761.33, 1,140.91 and 413.91

Calculator

Solution

The fourth proportional to 761.33, 1,140.91 and 413.91 is: 620.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    761.33 : 1,140.91 = 413.91 : x
  2. Step 2: Convert to fraction form
    761.33/1,140.91 = 413.91/x
  3. Step 3: Cross multiply
    761.33x = 1,140.91 × 413.91
  4. Step 4: Simplify right side
    761.33x = 472,233.02
  5. Step 5: Solve for x
    x = 472,233.02/761.33
  6. Step 6: Final answer
    x = 620.27

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.