Home / 315-722

Finding the Third Proportional to 315 and 722

Calculator

Solution

The third proportional to 315 and 722 is: 1,654.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    315 : 722 = 722 : x
  2. Step 2: Convert to fraction form
    315/722 = 722/x
  3. Step 3: Cross multiply
    315x = 722 × 722
  4. Step 4: Simplify right side
    315x = 521,284
  5. Step 5: Solve for x
    x = 521,284/315
  6. Step 6: Final answer
    x = 1,654.87

Related Problems

Why These Related Problems?

These problems maintain the same ratio (2.29) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.