Home / 605.40-834.60-502.80

Finding the Fourth Proportional to 605.40, 834.60 and 502.80

Calculator

Solution

The fourth proportional to 605.40, 834.60 and 502.80 is: 693.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.40 : 834.60 = 502.80 : x
  2. Step 2: Convert to fraction form
    605.40/834.60 = 502.80/x
  3. Step 3: Cross multiply
    605.40x = 834.60 × 502.80
  4. Step 4: Simplify right side
    605.40x = 419,636.88
  5. Step 5: Solve for x
    x = 419,636.88/605.40
  6. Step 6: Final answer
    x = 693.16

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.