Home / 547.92-820.80-384.96

Finding the Fourth Proportional to 547.92, 820.80 and 384.96

Calculator

Solution

The fourth proportional to 547.92, 820.80 and 384.96 is: 576.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    547.92 : 820.80 = 384.96 : x
  2. Step 2: Convert to fraction form
    547.92/820.80 = 384.96/x
  3. Step 3: Cross multiply
    547.92x = 820.80 × 384.96
  4. Step 4: Simplify right side
    547.92x = 315,975.17
  5. Step 5: Solve for x
    x = 315,975.17/547.92
  6. Step 6: Final answer
    x = 576.68

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.