Home / 378,711-569,040

Finding the Third Proportional to 378,711 and 569,040

Calculator

Solution

The third proportional to 378,711 and 569,040 is: 855,022.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,711 : 569,040 = 569,040 : x
  2. Step 2: Convert to fraction form
    378,711/569,040 = 569,040/x
  3. Step 3: Cross multiply
    378,711x = 569,040 × 569,040
  4. Step 4: Simplify right side
    378,711x = 323,806,521,600
  5. Step 5: Solve for x
    x = 323,806,521,600/378,711
  6. Step 6: Final answer
    x = 855,022.75

Related Problems

Find third proportional to 189,355.50 and 284,520
Half scale
Find third proportional to 757,422 and 1,138,080
Double scale
Find third proportional to 378,713 and 569,043
Similar ratio
Find third proportional to 568,066.50 and 853,560
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.