Home / 548.07-820.31-417.37

Finding the Fourth Proportional to 548.07, 820.31 and 417.37

Calculator

Solution

The fourth proportional to 548.07, 820.31 and 417.37 is: 624.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    548.07 : 820.31 = 417.37 : x
  2. Step 2: Convert to fraction form
    548.07/820.31 = 417.37/x
  3. Step 3: Cross multiply
    548.07x = 820.31 × 417.37
  4. Step 4: Simplify right side
    548.07x = 342,368.65
  5. Step 5: Solve for x
    x = 342,368.65/548.07
  6. Step 6: Final answer
    x = 624.68

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.