Home / 286,336-621,880

Finding the Third Proportional to 286,336 and 621,880

Calculator

Solution

The third proportional to 286,336 and 621,880 is: 1,350,632.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,336 : 621,880 = 621,880 : x
  2. Step 2: Convert to fraction form
    286,336/621,880 = 621,880/x
  3. Step 3: Cross multiply
    286,336x = 621,880 × 621,880
  4. Step 4: Simplify right side
    286,336x = 386,734,734,400
  5. Step 5: Solve for x
    x = 386,734,734,400/286,336
  6. Step 6: Final answer
    x = 1,350,632.59

Related Problems

Find third proportional to 143,168 and 310,940
Half scale
Find third proportional to 572,672 and 1,243,760
Double scale
Find third proportional to 286,338 and 621,884
Similar ratio
Find third proportional to 429,504 and 932,820
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.