Home / 294,984-639,918

Finding the Third Proportional to 294,984 and 639,918

Calculator

Solution

The third proportional to 294,984 and 639,918 is: 1,388,194.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,984 : 639,918 = 639,918 : x
  2. Step 2: Convert to fraction form
    294,984/639,918 = 639,918/x
  3. Step 3: Cross multiply
    294,984x = 639,918 × 639,918
  4. Step 4: Simplify right side
    294,984x = 409,495,046,724
  5. Step 5: Solve for x
    x = 409,495,046,724/294,984
  6. Step 6: Final answer
    x = 1,388,194.09

Related Problems

Find third proportional to 147,492 and 319,959
Half scale
Find third proportional to 589,968 and 1,279,836
Double scale
Find third proportional to 294,986 and 639,922
Similar ratio
Find third proportional to 442,476 and 959,877
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.