Home / 807.50-1,178.75

Finding the Third Proportional to 807.50 and 1,178.75

Calculator

Solution

The third proportional to 807.50 and 1,178.75 is: 1,720.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    807.50 : 1,178.75 = 1,178.75 : x
  2. Step 2: Convert to fraction form
    807.50/1,178.75 = 1,178.75/x
  3. Step 3: Cross multiply
    807.50x = 1,178.75 × 1,178.75
  4. Step 4: Simplify right side
    807.50x = 1,389,451.56
  5. Step 5: Solve for x
    x = 1,389,451.56/807.50
  6. Step 6: Final answer
    x = 1,720.68

Related Problems

Find third proportional to 403.75 and 589.38
Half scale
Find third proportional to 1,615 and 2,357.50
Double scale
Find third proportional to 810 and 1,182
Similar ratio
Find third proportional to 1,211.25 and 1,768.13
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.