Home / 410.56-661.44

Finding the Third Proportional to 410.56 and 661.44

Calculator

Solution

The third proportional to 410.56 and 661.44 is: 1,065.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    410.56 : 661.44 = 661.44 : x
  2. Step 2: Convert to fraction form
    410.56/661.44 = 661.44/x
  3. Step 3: Cross multiply
    410.56x = 661.44 × 661.44
  4. Step 4: Simplify right side
    410.56x = 437,499.57
  5. Step 5: Solve for x
    x = 437,499.57/410.56
  6. Step 6: Final answer
    x = 1,065.61

Related Problems

Find third proportional to 205.28 and 330.72
Half scale
Find third proportional to 821.13 and 1,322.88
Double scale
Find third proportional to 413 and 665
Similar ratio
Find third proportional to 615.84 and 992.16
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.