Home / 385-722

Finding the Third Proportional to 385 and 722

Calculator

Solution

The third proportional to 385 and 722 is: 1,353.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    385 : 722 = 722 : x
  2. Step 2: Convert to fraction form
    385/722 = 722/x
  3. Step 3: Cross multiply
    385x = 722 × 722
  4. Step 4: Simplify right side
    385x = 521,284
  5. Step 5: Solve for x
    x = 521,284/385
  6. Step 6: Final answer
    x = 1,353.98

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.88) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.