Home / 309,062-651,888

Finding the Third Proportional to 309,062 and 651,888

Calculator

Solution

The third proportional to 309,062 and 651,888 is: 1,374,992.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,062 : 651,888 = 651,888 : x
  2. Step 2: Convert to fraction form
    309,062/651,888 = 651,888/x
  3. Step 3: Cross multiply
    309,062x = 651,888 × 651,888
  4. Step 4: Simplify right side
    309,062x = 424,957,964,544
  5. Step 5: Solve for x
    x = 424,957,964,544/309,062
  6. Step 6: Final answer
    x = 1,374,992.61

Related Problems

Find third proportional to 154,531 and 325,944
Half scale
Find third proportional to 618,124 and 1,303,776
Double scale
Find third proportional to 309,064 and 651,892
Similar ratio
Find third proportional to 463,593 and 977,832
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.