Home / 718.78-1,572.19

Finding the Third Proportional to 718.78 and 1,572.19

Calculator

Solution

The third proportional to 718.78 and 1,572.19 is: 3,438.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    718.78 : 1,572.19 = 1,572.19 : x
  2. Step 2: Convert to fraction form
    718.78/1,572.19 = 1,572.19/x
  3. Step 3: Cross multiply
    718.78x = 1,572.19 × 1,572.19
  4. Step 4: Simplify right side
    718.78x = 2,471,773.54
  5. Step 5: Solve for x
    x = 2,471,773.54/718.78
  6. Step 6: Final answer
    x = 3,438.84

Related Problems

Find third proportional to 359.39 and 786.09
Half scale
Find third proportional to 1,437.56 and 3,144.38
Double scale
Find third proportional to 721 and 1,577
Similar ratio
Find third proportional to 1,078.17 and 2,358.28
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.