Home / 469.41-647.28-329.48

Finding the Fourth Proportional to 469.41, 647.28 and 329.48

Calculator

Solution

The fourth proportional to 469.41, 647.28 and 329.48 is: 454.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    469.41 : 647.28 = 329.48 : x
  2. Step 2: Convert to fraction form
    469.41/647.28 = 329.48/x
  3. Step 3: Cross multiply
    469.41x = 647.28 × 329.48
  4. Step 4: Simplify right side
    469.41x = 213,265.81
  5. Step 5: Solve for x
    x = 213,265.81/469.41
  6. Step 6: Final answer
    x = 454.33

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.