Home / 409,276-838,228

Finding the Third Proportional to 409,276 and 838,228

Calculator

Solution

The third proportional to 409,276 and 838,228 is: 1,716,753.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,276 : 838,228 = 838,228 : x
  2. Step 2: Convert to fraction form
    409,276/838,228 = 838,228/x
  3. Step 3: Cross multiply
    409,276x = 838,228 × 838,228
  4. Step 4: Simplify right side
    409,276x = 702,626,179,984
  5. Step 5: Solve for x
    x = 702,626,179,984/409,276
  6. Step 6: Final answer
    x = 1,716,753.93

Related Problems

Find third proportional to 204,638 and 419,114
Half scale
Find third proportional to 818,552 and 1,676,456
Double scale
Find third proportional to 409,278 and 838,232
Similar ratio
Find third proportional to 613,914 and 1,257,342
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.