Home / 814.88-1,219.88-555.14

Finding the Fourth Proportional to 814.88, 1,219.88 and 555.14

Calculator

Solution

The fourth proportional to 814.88, 1,219.88 and 555.14 is: 831.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    814.88 : 1,219.88 = 555.14 : x
  2. Step 2: Convert to fraction form
    814.88/1,219.88 = 555.14/x
  3. Step 3: Cross multiply
    814.88x = 1,219.88 × 555.14
  4. Step 4: Simplify right side
    814.88x = 677,204.18
  5. Step 5: Solve for x
    x = 677,204.18/814.88
  6. Step 6: Final answer
    x = 831.05

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.