Home / 878,405.50-1,289,906

Finding the Third Proportional to 878,405.50 and 1,289,906

Calculator

Solution

The third proportional to 878,405.50 and 1,289,906 is: 1,894,179.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,405.50 : 1,289,906 = 1,289,906 : x
  2. Step 2: Convert to fraction form
    878,405.50/1,289,906 = 1,289,906/x
  3. Step 3: Cross multiply
    878,405.50x = 1,289,906 × 1,289,906
  4. Step 4: Simplify right side
    878,405.50x = 1,663,857,488,836
  5. Step 5: Solve for x
    x = 1,663,857,488,836/878,405.50
  6. Step 6: Final answer
    x = 1,894,179.27

Related Problems

Find third proportional to 439,202.75 and 644,953
Half scale
Find third proportional to 1,756,811 and 2,579,812
Double scale
Find third proportional to 878,408 and 1,289,909
Similar ratio
Find third proportional to 1,317,608.25 and 1,934,859
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.