Home / 871.14-1,202.32-556.54

Finding the Fourth Proportional to 871.14, 1,202.32 and 556.54

Calculator

Solution

The fourth proportional to 871.14, 1,202.32 and 556.54 is: 768.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    871.14 : 1,202.32 = 556.54 : x
  2. Step 2: Convert to fraction form
    871.14/1,202.32 = 556.54/x
  3. Step 3: Cross multiply
    871.14x = 1,202.32 × 556.54
  4. Step 4: Simplify right side
    871.14x = 669,139.17
  5. Step 5: Solve for x
    x = 669,139.17/871.14
  6. Step 6: Final answer
    x = 768.12

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.