Home / 303,978-521,575

Finding the Third Proportional to 303,978 and 521,575

Calculator

Solution

The third proportional to 303,978 and 521,575 is: 894,934.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,978 : 521,575 = 521,575 : x
  2. Step 2: Convert to fraction form
    303,978/521,575 = 521,575/x
  3. Step 3: Cross multiply
    303,978x = 521,575 × 521,575
  4. Step 4: Simplify right side
    303,978x = 272,040,480,625
  5. Step 5: Solve for x
    x = 272,040,480,625/303,978
  6. Step 6: Final answer
    x = 894,934.77

Related Problems

Find third proportional to 151,989 and 260,787.50
Half scale
Find third proportional to 607,956 and 1,043,150
Double scale
Find third proportional to 303,980 and 521,578
Similar ratio
Find third proportional to 455,967 and 782,362.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.72) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.