Home / 356,956-489,462

Finding the Third Proportional to 356,956 and 489,462

Calculator

Solution

The third proportional to 356,956 and 489,462 is: 671,155.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,956 : 489,462 = 489,462 : x
  2. Step 2: Convert to fraction form
    356,956/489,462 = 489,462/x
  3. Step 3: Cross multiply
    356,956x = 489,462 × 489,462
  4. Step 4: Simplify right side
    356,956x = 239,573,049,444
  5. Step 5: Solve for x
    x = 239,573,049,444/356,956
  6. Step 6: Final answer
    x = 671,155.69

Related Problems

Find third proportional to 178,478 and 244,731
Half scale
Find third proportional to 713,912 and 978,924
Double scale
Find third proportional to 356,958 and 489,465
Similar ratio
Find third proportional to 535,434 and 734,193
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.