Home / 981.44-1,472.23-288.07

Finding the Fourth Proportional to 981.44, 1,472.23 and 288.07

Calculator

Solution

The fourth proportional to 981.44, 1,472.23 and 288.07 is: 432.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    981.44 : 1,472.23 = 288.07 : x
  2. Step 2: Convert to fraction form
    981.44/1,472.23 = 288.07/x
  3. Step 3: Cross multiply
    981.44x = 1,472.23 × 288.07
  4. Step 4: Simplify right side
    981.44x = 424,104.02
  5. Step 5: Solve for x
    x = 424,104.02/981.44
  6. Step 6: Final answer
    x = 432.13

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.