Home / 826.50-1,140.87-494.80

Finding the Fourth Proportional to 826.50, 1,140.87 and 494.80

Calculator

Solution

The fourth proportional to 826.50, 1,140.87 and 494.80 is: 683.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    826.50 : 1,140.87 = 494.80 : x
  2. Step 2: Convert to fraction form
    826.50/1,140.87 = 494.80/x
  3. Step 3: Cross multiply
    826.50x = 1,140.87 × 494.80
  4. Step 4: Simplify right side
    826.50x = 564,502.48
  5. Step 5: Solve for x
    x = 564,502.48/826.50
  6. Step 6: Final answer
    x = 683.00

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.