Home / 290,886-608,256

Finding the Third Proportional to 290,886 and 608,256

Calculator

Solution

The third proportional to 290,886 and 608,256 is: 1,271,891.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,886 : 608,256 = 608,256 : x
  2. Step 2: Convert to fraction form
    290,886/608,256 = 608,256/x
  3. Step 3: Cross multiply
    290,886x = 608,256 × 608,256
  4. Step 4: Simplify right side
    290,886x = 369,975,361,536
  5. Step 5: Solve for x
    x = 369,975,361,536/290,886
  6. Step 6: Final answer
    x = 1,271,891.26

Related Problems

Find third proportional to 145,443 and 304,128
Half scale
Find third proportional to 581,772 and 1,216,512
Double scale
Find third proportional to 290,888 and 608,260
Similar ratio
Find third proportional to 436,329 and 912,384
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.