Home / 550.18-825.91-434.70

Finding the Fourth Proportional to 550.18, 825.91 and 434.70

Calculator

Solution

The fourth proportional to 550.18, 825.91 and 434.70 is: 652.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    550.18 : 825.91 = 434.70 : x
  2. Step 2: Convert to fraction form
    550.18/825.91 = 434.70/x
  3. Step 3: Cross multiply
    550.18x = 825.91 × 434.70
  4. Step 4: Simplify right side
    550.18x = 359,023.08
  5. Step 5: Solve for x
    x = 359,023.08/550.18
  6. Step 6: Final answer
    x = 652.56

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.