Home / 279,504-620,928

Finding the Third Proportional to 279,504 and 620,928

Calculator

Solution

The third proportional to 279,504 and 620,928 is: 1,379,413.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,504 : 620,928 = 620,928 : x
  2. Step 2: Convert to fraction form
    279,504/620,928 = 620,928/x
  3. Step 3: Cross multiply
    279,504x = 620,928 × 620,928
  4. Step 4: Simplify right side
    279,504x = 385,551,581,184
  5. Step 5: Solve for x
    x = 385,551,581,184/279,504
  6. Step 6: Final answer
    x = 1,379,413.47

Related Problems

Find third proportional to 139,752 and 310,464
Half scale
Find third proportional to 559,008 and 1,241,856
Double scale
Find third proportional to 279,506 and 620,932
Similar ratio
Find third proportional to 419,256 and 931,392
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.