Home / 370,820-809,316

Finding the Third Proportional to 370,820 and 809,316

Calculator

Solution

The third proportional to 370,820 and 809,316 is: 1,766,335.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,820 : 809,316 = 809,316 : x
  2. Step 2: Convert to fraction form
    370,820/809,316 = 809,316/x
  3. Step 3: Cross multiply
    370,820x = 809,316 × 809,316
  4. Step 4: Simplify right side
    370,820x = 654,992,387,856
  5. Step 5: Solve for x
    x = 654,992,387,856/370,820
  6. Step 6: Final answer
    x = 1,766,335.12

Related Problems

Find third proportional to 185,410 and 404,658
Half scale
Find third proportional to 741,640 and 1,618,632
Double scale
Find third proportional to 370,822 and 809,320
Similar ratio
Find third proportional to 556,230 and 1,213,974
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.