Home / 422,158-861,540

Finding the Third Proportional to 422,158 and 861,540

Calculator

Solution

The third proportional to 422,158 and 861,540 is: 1,758,230.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,158 : 861,540 = 861,540 : x
  2. Step 2: Convert to fraction form
    422,158/861,540 = 861,540/x
  3. Step 3: Cross multiply
    422,158x = 861,540 × 861,540
  4. Step 4: Simplify right side
    422,158x = 742,251,171,600
  5. Step 5: Solve for x
    x = 742,251,171,600/422,158
  6. Step 6: Final answer
    x = 1,758,230.74

Related Problems

Find third proportional to 211,079 and 430,770
Half scale
Find third proportional to 844,316 and 1,723,080
Double scale
Find third proportional to 422,160 and 861,544
Similar ratio
Find third proportional to 633,237 and 1,292,310
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.