Home / 698.14-963.46-399.44

Finding the Fourth Proportional to 698.14, 963.46 and 399.44

Calculator

Solution

The fourth proportional to 698.14, 963.46 and 399.44 is: 551.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    698.14 : 963.46 = 399.44 : x
  2. Step 2: Convert to fraction form
    698.14/963.46 = 399.44/x
  3. Step 3: Cross multiply
    698.14x = 963.46 × 399.44
  4. Step 4: Simplify right side
    698.14x = 384,840.14
  5. Step 5: Solve for x
    x = 384,840.14/698.14
  6. Step 6: Final answer
    x = 551.24

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.