Home / 305,124-638,132

Finding the Third Proportional to 305,124 and 638,132

Calculator

Solution

The third proportional to 305,124 and 638,132 is: 1,334,580.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,124 : 638,132 = 638,132 : x
  2. Step 2: Convert to fraction form
    305,124/638,132 = 638,132/x
  3. Step 3: Cross multiply
    305,124x = 638,132 × 638,132
  4. Step 4: Simplify right side
    305,124x = 407,212,449,424
  5. Step 5: Solve for x
    x = 407,212,449,424/305,124
  6. Step 6: Final answer
    x = 1,334,580.20

Related Problems

Find third proportional to 152,562 and 319,066
Half scale
Find third proportional to 610,248 and 1,276,264
Double scale
Find third proportional to 305,126 and 638,136
Similar ratio
Find third proportional to 457,686 and 957,198
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.