Home / 261,504-400,680

Finding the Third Proportional to 261,504 and 400,680

Calculator

Solution

The third proportional to 261,504 and 400,680 is: 613,927.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,504 : 400,680 = 400,680 : x
  2. Step 2: Convert to fraction form
    261,504/400,680 = 400,680/x
  3. Step 3: Cross multiply
    261,504x = 400,680 × 400,680
  4. Step 4: Simplify right side
    261,504x = 160,544,462,400
  5. Step 5: Solve for x
    x = 160,544,462,400/261,504
  6. Step 6: Final answer
    x = 613,927.37

Related Problems

Find third proportional to 130,752 and 200,340
Half scale
Find third proportional to 523,008 and 801,360
Double scale
Find third proportional to 261,506 and 400,683
Similar ratio
Find third proportional to 392,256 and 601,020
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.