Home / 852.50-1,278.50

Finding the Third Proportional to 852.50 and 1,278.50

Calculator

Solution

The third proportional to 852.50 and 1,278.50 is: 1,917.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    852.50 : 1,278.50 = 1,278.50 : x
  2. Step 2: Convert to fraction form
    852.50/1,278.50 = 1,278.50/x
  3. Step 3: Cross multiply
    852.50x = 1,278.50 × 1,278.50
  4. Step 4: Simplify right side
    852.50x = 1,634,562.25
  5. Step 5: Solve for x
    x = 1,634,562.25/852.50
  6. Step 6: Final answer
    x = 1,917.38

Related Problems

Find third proportional to 426.25 and 639.25
Half scale
Find third proportional to 1,705 and 2,557
Double scale
Find third proportional to 855 and 1,281
Similar ratio
Find third proportional to 1,278.75 and 1,917.75
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.