Home / 620-872.50

Finding the Third Proportional to 620 and 872.50

Calculator

Solution

The third proportional to 620 and 872.50 is: 1,227.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    620 : 872.50 = 872.50 : x
  2. Step 2: Convert to fraction form
    620/872.50 = 872.50/x
  3. Step 3: Cross multiply
    620x = 872.50 × 872.50
  4. Step 4: Simplify right side
    620x = 761,256.25
  5. Step 5: Solve for x
    x = 761,256.25/620
  6. Step 6: Final answer
    x = 1,227.83

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.