Home / 293,380-642,860

Finding the Third Proportional to 293,380 and 642,860

Calculator

Solution

The third proportional to 293,380 and 642,860 is: 1,408,647.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,380 : 642,860 = 642,860 : x
  2. Step 2: Convert to fraction form
    293,380/642,860 = 642,860/x
  3. Step 3: Cross multiply
    293,380x = 642,860 × 642,860
  4. Step 4: Simplify right side
    293,380x = 413,268,979,600
  5. Step 5: Solve for x
    x = 413,268,979,600/293,380
  6. Step 6: Final answer
    x = 1,408,647.42

Related Problems

Find third proportional to 146,690 and 321,430
Half scale
Find third proportional to 586,760 and 1,285,720
Double scale
Find third proportional to 293,382 and 642,864
Similar ratio
Find third proportional to 440,070 and 964,290
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.