Home / 290,413.13-427,071.38

Finding the Third Proportional to 290,413.13 and 427,071.38

Calculator

Solution

The third proportional to 290,413.13 and 427,071.38 is: 628,036.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,413.13 : 427,071.38 = 427,071.38 : x
  2. Step 2: Convert to fraction form
    290,413.13/427,071.38 = 427,071.38/x
  3. Step 3: Cross multiply
    290,413.13x = 427,071.38 × 427,071.38
  4. Step 4: Simplify right side
    290,413.13x = 182,389,959,344.39
  5. Step 5: Solve for x
    x = 182,389,959,344.39/290,413.13
  6. Step 6: Final answer
    x = 628,036.21

Related Problems

Find third proportional to 145,206.56 and 213,535.69
Half scale
Find third proportional to 580,826.25 and 854,142.75
Double scale
Find third proportional to 290,415 and 427,074
Similar ratio
Find third proportional to 435,619.69 and 640,607.06
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.