Home / 828,082.78-1,241,238.30-428,321.08

Finding the Fourth Proportional to 828,082.78, 1,241,238.30 and 428,321.08

Calculator

Solution

The fourth proportional to 828,082.78, 1,241,238.30 and 428,321.08 is: 642,023.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,082.78 : 1,241,238.30 = 428,321.08 : x
  2. Step 2: Convert to fraction form
    828,082.78/1,241,238.30 = 428,321.08/x
  3. Step 3: Cross multiply
    828,082.78x = 1,241,238.30 × 428,321.08
  4. Step 4: Simplify right side
    828,082.78x = 531,648,529,193.36
  5. Step 5: Solve for x
    x = 531,648,529,193.36/828,082.78
  6. Step 6: Final answer
    x = 642,023.41

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.