Home / 657,238-1,399,220

Finding the Third Proportional to 657,238 and 1,399,220

Calculator

Solution

The third proportional to 657,238 and 1,399,220 is: 2,978,854.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,238 : 1,399,220 = 1,399,220 : x
  2. Step 2: Convert to fraction form
    657,238/1,399,220 = 1,399,220/x
  3. Step 3: Cross multiply
    657,238x = 1,399,220 × 1,399,220
  4. Step 4: Simplify right side
    657,238x = 1,957,816,608,400
  5. Step 5: Solve for x
    x = 1,957,816,608,400/657,238
  6. Step 6: Final answer
    x = 2,978,854.86

Related Problems

Find third proportional to 328,619 and 699,610
Half scale
Find third proportional to 1,314,476 and 2,798,440
Double scale
Find third proportional to 657,240 and 1,399,224
Similar ratio
Find third proportional to 985,857 and 2,098,830
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.