Home / 309,504-491,904

Finding the Third Proportional to 309,504 and 491,904

Calculator

Solution

The third proportional to 309,504 and 491,904 is: 781,797.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,504 : 491,904 = 491,904 : x
  2. Step 2: Convert to fraction form
    309,504/491,904 = 491,904/x
  3. Step 3: Cross multiply
    309,504x = 491,904 × 491,904
  4. Step 4: Simplify right side
    309,504x = 241,969,545,216
  5. Step 5: Solve for x
    x = 241,969,545,216/309,504
  6. Step 6: Final answer
    x = 781,797.80

Related Problems

Find third proportional to 154,752 and 245,952
Half scale
Find third proportional to 619,008 and 983,808
Double scale
Find third proportional to 309,506 and 491,907
Similar ratio
Find third proportional to 464,256 and 737,856
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.