Home / 257,008-556,920

Finding the Third Proportional to 257,008 and 556,920

Calculator

Solution

The third proportional to 257,008 and 556,920 is: 1,206,810.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,008 : 556,920 = 556,920 : x
  2. Step 2: Convert to fraction form
    257,008/556,920 = 556,920/x
  3. Step 3: Cross multiply
    257,008x = 556,920 × 556,920
  4. Step 4: Simplify right side
    257,008x = 310,159,886,400
  5. Step 5: Solve for x
    x = 310,159,886,400/257,008
  6. Step 6: Final answer
    x = 1,206,810.24

Related Problems

Find third proportional to 128,504 and 278,460
Half scale
Find third proportional to 514,016 and 1,113,840
Double scale
Find third proportional to 257,010 and 556,924
Similar ratio
Find third proportional to 385,512 and 835,380
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.