Home / 558.29-770.11-392.65

Finding the Fourth Proportional to 558.29, 770.11 and 392.65

Calculator

Solution

The fourth proportional to 558.29, 770.11 and 392.65 is: 541.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    558.29 : 770.11 = 392.65 : x
  2. Step 2: Convert to fraction form
    558.29/770.11 = 392.65/x
  3. Step 3: Cross multiply
    558.29x = 770.11 × 392.65
  4. Step 4: Simplify right side
    558.29x = 302,380.78
  5. Step 5: Solve for x
    x = 302,380.78/558.29
  6. Step 6: Final answer
    x = 541.62

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.