Home / 622.13-931.86-313.47

Finding the Fourth Proportional to 622.13, 931.86 and 313.47

Calculator

Solution

The fourth proportional to 622.13, 931.86 and 313.47 is: 469.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    622.13 : 931.86 = 313.47 : x
  2. Step 2: Convert to fraction form
    622.13/931.86 = 313.47/x
  3. Step 3: Cross multiply
    622.13x = 931.86 × 313.47
  4. Step 4: Simplify right side
    622.13x = 292,110.15
  5. Step 5: Solve for x
    x = 292,110.15/622.13
  6. Step 6: Final answer
    x = 469.54

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.