Home / 521.93-781.53-338.77

Finding the Fourth Proportional to 521.93, 781.53 and 338.77

Calculator

Solution

The fourth proportional to 521.93, 781.53 and 338.77 is: 507.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    521.93 : 781.53 = 338.77 : x
  2. Step 2: Convert to fraction form
    521.93/781.53 = 338.77/x
  3. Step 3: Cross multiply
    521.93x = 781.53 × 338.77
  4. Step 4: Simplify right side
    521.93x = 264,758.92
  5. Step 5: Solve for x
    x = 264,758.92/521.93
  6. Step 6: Final answer
    x = 507.27

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.