Home / 1,421,867-2,180,316

Finding the Third Proportional to 1,421,867 and 2,180,316

Calculator

Solution

The third proportional to 1,421,867 and 2,180,316 is: 3,343,335.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,867 : 2,180,316 = 2,180,316 : x
  2. Step 2: Convert to fraction form
    1,421,867/2,180,316 = 2,180,316/x
  3. Step 3: Cross multiply
    1,421,867x = 2,180,316 × 2,180,316
  4. Step 4: Simplify right side
    1,421,867x = 4,753,777,859,856
  5. Step 5: Solve for x
    x = 4,753,777,859,856/1,421,867
  6. Step 6: Final answer
    x = 3,343,335.11

Related Problems

Find third proportional to 710,933.50 and 1,090,158
Half scale
Find third proportional to 2,843,734 and 4,360,632
Double scale
Find third proportional to 1,421,869 and 2,180,319
Similar ratio
Find third proportional to 2,132,800.50 and 3,270,474
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.