Home / 519.13-778.29-381.97

Finding the Fourth Proportional to 519.13, 778.29 and 381.97

Calculator

Solution

The fourth proportional to 519.13, 778.29 and 381.97 is: 572.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    519.13 : 778.29 = 381.97 : x
  2. Step 2: Convert to fraction form
    519.13/778.29 = 381.97/x
  3. Step 3: Cross multiply
    519.13x = 778.29 × 381.97
  4. Step 4: Simplify right side
    519.13x = 297,283.43
  5. Step 5: Solve for x
    x = 297,283.43/519.13
  6. Step 6: Final answer
    x = 572.66

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.