Home / 836.42-1,254.54-288.54

Finding the Fourth Proportional to 836.42, 1,254.54 and 288.54

Calculator

Solution

The fourth proportional to 836.42, 1,254.54 and 288.54 is: 432.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    836.42 : 1,254.54 = 288.54 : x
  2. Step 2: Convert to fraction form
    836.42/1,254.54 = 288.54/x
  3. Step 3: Cross multiply
    836.42x = 1,254.54 × 288.54
  4. Step 4: Simplify right side
    836.42x = 361,984.97
  5. Step 5: Solve for x
    x = 361,984.97/836.42
  6. Step 6: Final answer
    x = 432.78

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.