Home / 290,976-627,856

Finding the Third Proportional to 290,976 and 627,856

Calculator

Solution

The third proportional to 290,976 and 627,856 is: 1,354,761.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,976 : 627,856 = 627,856 : x
  2. Step 2: Convert to fraction form
    290,976/627,856 = 627,856/x
  3. Step 3: Cross multiply
    290,976x = 627,856 × 627,856
  4. Step 4: Simplify right side
    290,976x = 394,203,156,736
  5. Step 5: Solve for x
    x = 394,203,156,736/290,976
  6. Step 6: Final answer
    x = 1,354,761.76

Related Problems

Find third proportional to 145,488 and 313,928
Half scale
Find third proportional to 581,952 and 1,255,712
Double scale
Find third proportional to 290,978 and 627,860
Similar ratio
Find third proportional to 436,464 and 941,784
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.