Home / 775.50-843.75

Finding the Third Proportional to 775.50 and 843.75

Calculator

Solution

The third proportional to 775.50 and 843.75 is: 918.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    775.50 : 843.75 = 843.75 : x
  2. Step 2: Convert to fraction form
    775.50/843.75 = 843.75/x
  3. Step 3: Cross multiply
    775.50x = 843.75 × 843.75
  4. Step 4: Simplify right side
    775.50x = 711,914.06
  5. Step 5: Solve for x
    x = 711,914.06/775.50
  6. Step 6: Final answer
    x = 918.01

Related Problems

Find third proportional to 387.75 and 421.88
Half scale
Find third proportional to 1,551 and 1,687.50
Double scale
Find third proportional to 778 and 846
Similar ratio
Find third proportional to 1,163.25 and 1,265.63
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.