Home / 317,642-698,256

Finding the Third Proportional to 317,642 and 698,256

Calculator

Solution

The third proportional to 317,642 and 698,256 is: 1,534,940.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,642 : 698,256 = 698,256 : x
  2. Step 2: Convert to fraction form
    317,642/698,256 = 698,256/x
  3. Step 3: Cross multiply
    317,642x = 698,256 × 698,256
  4. Step 4: Simplify right side
    317,642x = 487,561,441,536
  5. Step 5: Solve for x
    x = 487,561,441,536/317,642
  6. Step 6: Final answer
    x = 1,534,940.09

Related Problems

Find third proportional to 158,821 and 349,128
Half scale
Find third proportional to 635,284 and 1,396,512
Double scale
Find third proportional to 317,644 and 698,260
Similar ratio
Find third proportional to 476,463 and 1,047,384
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.