Home / 316,634-489,652

Finding the Third Proportional to 316,634 and 489,652

Calculator

Solution

The third proportional to 316,634 and 489,652 is: 757,212.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,634 : 489,652 = 489,652 : x
  2. Step 2: Convert to fraction form
    316,634/489,652 = 489,652/x
  3. Step 3: Cross multiply
    316,634x = 489,652 × 489,652
  4. Step 4: Simplify right side
    316,634x = 239,759,081,104
  5. Step 5: Solve for x
    x = 239,759,081,104/316,634
  6. Step 6: Final answer
    x = 757,212.05

Related Problems

Find third proportional to 158,317 and 244,826
Half scale
Find third proportional to 633,268 and 979,304
Double scale
Find third proportional to 316,636 and 489,655
Similar ratio
Find third proportional to 474,951 and 734,478
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.