Home / 871,120-1,311,748

Finding the Third Proportional to 871,120 and 1,311,748

Calculator

Solution

The third proportional to 871,120 and 1,311,748 is: 1,975,253.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,120 : 1,311,748 = 1,311,748 : x
  2. Step 2: Convert to fraction form
    871,120/1,311,748 = 1,311,748/x
  3. Step 3: Cross multiply
    871,120x = 1,311,748 × 1,311,748
  4. Step 4: Simplify right side
    871,120x = 1,720,682,815,504
  5. Step 5: Solve for x
    x = 1,720,682,815,504/871,120
  6. Step 6: Final answer
    x = 1,975,253.48

Related Problems

Find third proportional to 435,560 and 655,874
Half scale
Find third proportional to 1,742,240 and 2,623,496
Double scale
Find third proportional to 871,122 and 1,311,751
Similar ratio
Find third proportional to 1,306,680 and 1,967,622
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.