Home / 305,105-656,127

Finding the Third Proportional to 305,105 and 656,127

Calculator

Solution

The third proportional to 305,105 and 656,127 is: 1,410,998.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,105 : 656,127 = 656,127 : x
  2. Step 2: Convert to fraction form
    305,105/656,127 = 656,127/x
  3. Step 3: Cross multiply
    305,105x = 656,127 × 656,127
  4. Step 4: Simplify right side
    305,105x = 430,502,640,129
  5. Step 5: Solve for x
    x = 430,502,640,129/305,105
  6. Step 6: Final answer
    x = 1,410,998.31

Related Problems

Find third proportional to 152,552.50 and 328,063.50
Half scale
Find third proportional to 610,210 and 1,312,254
Double scale
Find third proportional to 305,107 and 656,131
Similar ratio
Find third proportional to 457,657.50 and 984,190.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.