Home / 703-790

Finding the Third Proportional to 703 and 790

Calculator

Solution

The third proportional to 703 and 790 is: 887.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    703 : 790 = 790 : x
  2. Step 2: Convert to fraction form
    703/790 = 790/x
  3. Step 3: Cross multiply
    703x = 790 × 790
  4. Step 4: Simplify right side
    703x = 624,100
  5. Step 5: Solve for x
    x = 624,100/703
  6. Step 6: Final answer
    x = 887.77

Related Problems

Find third proportional to 351.50 and 395
Half scale
Find third proportional to 1,406 and 1,580
Double scale
Find third proportional to 705 and 792
Similar ratio
Find third proportional to 1,054.50 and 1,185
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.