Home / 1,020.24-1,530.18-289.86

Finding the Fourth Proportional to 1,020.24, 1,530.18 and 289.86

Calculator

Solution

The fourth proportional to 1,020.24, 1,530.18 and 289.86 is: 434.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020.24 : 1,530.18 = 289.86 : x
  2. Step 2: Convert to fraction form
    1,020.24/1,530.18 = 289.86/x
  3. Step 3: Cross multiply
    1,020.24x = 1,530.18 × 289.86
  4. Step 4: Simplify right side
    1,020.24x = 443,537.97
  5. Step 5: Solve for x
    x = 443,537.97/1,020.24
  6. Step 6: Final answer
    x = 434.74

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.