Home / 255,078-556,782

Finding the Third Proportional to 255,078 and 556,782

Calculator

Solution

The third proportional to 255,078 and 556,782 is: 1,215,338.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,078 : 556,782 = 556,782 : x
  2. Step 2: Convert to fraction form
    255,078/556,782 = 556,782/x
  3. Step 3: Cross multiply
    255,078x = 556,782 × 556,782
  4. Step 4: Simplify right side
    255,078x = 310,006,195,524
  5. Step 5: Solve for x
    x = 310,006,195,524/255,078
  6. Step 6: Final answer
    x = 1,215,338.82

Related Problems

Find third proportional to 127,539 and 278,391
Half scale
Find third proportional to 510,156 and 1,113,564
Double scale
Find third proportional to 255,080 and 556,786
Similar ratio
Find third proportional to 382,617 and 835,173
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.