Home / 678.24-933.93-579.78

Finding the Fourth Proportional to 678.24, 933.93 and 579.78

Calculator

Solution

The fourth proportional to 678.24, 933.93 and 579.78 is: 798.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    678.24 : 933.93 = 579.78 : x
  2. Step 2: Convert to fraction form
    678.24/933.93 = 579.78/x
  3. Step 3: Cross multiply
    678.24x = 933.93 × 579.78
  4. Step 4: Simplify right side
    678.24x = 541,473.94
  5. Step 5: Solve for x
    x = 541,473.94/678.24
  6. Step 6: Final answer
    x = 798.35

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.