Home / 286,848-421,922

Finding the Third Proportional to 286,848 and 421,922

Calculator

Solution

The third proportional to 286,848 and 421,922 is: 620,601.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,848 : 421,922 = 421,922 : x
  2. Step 2: Convert to fraction form
    286,848/421,922 = 421,922/x
  3. Step 3: Cross multiply
    286,848x = 421,922 × 421,922
  4. Step 4: Simplify right side
    286,848x = 178,018,174,084
  5. Step 5: Solve for x
    x = 178,018,174,084/286,848
  6. Step 6: Final answer
    x = 620,601.06

Related Problems

Find third proportional to 143,424 and 210,961
Half scale
Find third proportional to 573,696 and 843,844
Double scale
Find third proportional to 286,850 and 421,925
Similar ratio
Find third proportional to 430,272 and 632,883
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.