Home / 824.63-1,236.94-311.63

Finding the Fourth Proportional to 824.63, 1,236.94 and 311.63

Calculator

Solution

The fourth proportional to 824.63, 1,236.94 and 311.63 is: 467.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    824.63 : 1,236.94 = 311.63 : x
  2. Step 2: Convert to fraction form
    824.63/1,236.94 = 311.63/x
  3. Step 3: Cross multiply
    824.63x = 1,236.94 × 311.63
  4. Step 4: Simplify right side
    824.63x = 385,460.65
  5. Step 5: Solve for x
    x = 385,460.65/824.63
  6. Step 6: Final answer
    x = 467.44

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.