Home / 291,680-613,888

Finding the Third Proportional to 291,680 and 613,888

Calculator

Solution

The third proportional to 291,680 and 613,888 is: 1,292,027.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,680 : 613,888 = 613,888 : x
  2. Step 2: Convert to fraction form
    291,680/613,888 = 613,888/x
  3. Step 3: Cross multiply
    291,680x = 613,888 × 613,888
  4. Step 4: Simplify right side
    291,680x = 376,858,476,544
  5. Step 5: Solve for x
    x = 376,858,476,544/291,680
  6. Step 6: Final answer
    x = 1,292,027.14

Related Problems

Find third proportional to 145,840 and 306,944
Half scale
Find third proportional to 583,360 and 1,227,776
Double scale
Find third proportional to 291,682 and 613,892
Similar ratio
Find third proportional to 437,520 and 920,832
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.