Home / 799.64-1,199.60-388.73

Finding the Fourth Proportional to 799.64, 1,199.60 and 388.73

Calculator

Solution

The fourth proportional to 799.64, 1,199.60 and 388.73 is: 583.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    799.64 : 1,199.60 = 388.73 : x
  2. Step 2: Convert to fraction form
    799.64/1,199.60 = 388.73/x
  3. Step 3: Cross multiply
    799.64x = 1,199.60 × 388.73
  4. Step 4: Simplify right side
    799.64x = 466,323.02
  5. Step 5: Solve for x
    x = 466,323.02/799.64
  6. Step 6: Final answer
    x = 583.17

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.