Home / 1,406.27-2,109.33-432.38

Finding the Fourth Proportional to 1,406.27, 2,109.33 and 432.38

Calculator

Solution

The fourth proportional to 1,406.27, 2,109.33 and 432.38 is: 648.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,406.27 : 2,109.33 = 432.38 : x
  2. Step 2: Convert to fraction form
    1,406.27/2,109.33 = 432.38/x
  3. Step 3: Cross multiply
    1,406.27x = 2,109.33 × 432.38
  4. Step 4: Simplify right side
    1,406.27x = 912,037.38
  5. Step 5: Solve for x
    x = 912,037.38/1,406.27
  6. Step 6: Final answer
    x = 648.55

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.