Home / 576.86-864.48-413.78

Finding the Fourth Proportional to 576.86, 864.48 and 413.78

Calculator

Solution

The fourth proportional to 576.86, 864.48 and 413.78 is: 620.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    576.86 : 864.48 = 413.78 : x
  2. Step 2: Convert to fraction form
    576.86/864.48 = 413.78/x
  3. Step 3: Cross multiply
    576.86x = 864.48 × 413.78
  4. Step 4: Simplify right side
    576.86x = 357,704.53
  5. Step 5: Solve for x
    x = 357,704.53/576.86
  6. Step 6: Final answer
    x = 620.09

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.