Home / 561.96-841.56-287.66

Finding the Fourth Proportional to 561.96, 841.56 and 287.66

Calculator

Solution

The fourth proportional to 561.96, 841.56 and 287.66 is: 430.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    561.96 : 841.56 = 287.66 : x
  2. Step 2: Convert to fraction form
    561.96/841.56 = 287.66/x
  3. Step 3: Cross multiply
    561.96x = 841.56 × 287.66
  4. Step 4: Simplify right side
    561.96x = 242,083.15
  5. Step 5: Solve for x
    x = 242,083.15/561.96
  6. Step 6: Final answer
    x = 430.78

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.