Home / 571.78-862.03

Finding the Third Proportional to 571.78 and 862.03

Calculator

Solution

The third proportional to 571.78 and 862.03 is: 1,299.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    571.78 : 862.03 = 862.03 : x
  2. Step 2: Convert to fraction form
    571.78/862.03 = 862.03/x
  3. Step 3: Cross multiply
    571.78x = 862.03 × 862.03
  4. Step 4: Simplify right side
    571.78x = 743,097.88
  5. Step 5: Solve for x
    x = 743,097.88/571.78
  6. Step 6: Final answer
    x = 1,299.62

Related Problems

Find third proportional to 285.89 and 431.02
Half scale
Find third proportional to 1,143.56 and 1,724.06
Double scale
Find third proportional to 574 and 865
Similar ratio
Find third proportional to 857.67 and 1,293.05
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.