Home / 446.25-686.75

Finding the Third Proportional to 446.25 and 686.75

Calculator

Solution

The third proportional to 446.25 and 686.75 is: 1,056.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    446.25 : 686.75 = 686.75 : x
  2. Step 2: Convert to fraction form
    446.25/686.75 = 686.75/x
  3. Step 3: Cross multiply
    446.25x = 686.75 × 686.75
  4. Step 4: Simplify right side
    446.25x = 471,625.56
  5. Step 5: Solve for x
    x = 471,625.56/446.25
  6. Step 6: Final answer
    x = 1,056.86

Related Problems

Find third proportional to 223.13 and 343.38
Half scale
Find third proportional to 892.50 and 1,373.50
Double scale
Find third proportional to 448 and 690
Similar ratio
Find third proportional to 669.38 and 1,030.13
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.