Home / 439.79-606.96-352.71

Finding the Fourth Proportional to 439.79, 606.96 and 352.71

Calculator

Solution

The fourth proportional to 439.79, 606.96 and 352.71 is: 486.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    439.79 : 606.96 = 352.71 : x
  2. Step 2: Convert to fraction form
    439.79/606.96 = 352.71/x
  3. Step 3: Cross multiply
    439.79x = 606.96 × 352.71
  4. Step 4: Simplify right side
    439.79x = 214,080.86
  5. Step 5: Solve for x
    x = 214,080.86/439.79
  6. Step 6: Final answer
    x = 486.79

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.