Home / 829.29-1,240.83-820.07

Finding the Fourth Proportional to 829.29, 1,240.83 and 820.07

Calculator

Solution

The fourth proportional to 829.29, 1,240.83 and 820.07 is: 1,227.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    829.29 : 1,240.83 = 820.07 : x
  2. Step 2: Convert to fraction form
    829.29/1,240.83 = 820.07/x
  3. Step 3: Cross multiply
    829.29x = 1,240.83 × 820.07
  4. Step 4: Simplify right side
    829.29x = 1,017,561.25
  5. Step 5: Solve for x
    x = 1,017,561.25/829.29
  6. Step 6: Final answer
    x = 1,227.03

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.