Home / 409,808-839,848

Finding the Third Proportional to 409,808 and 839,848

Calculator

Solution

The third proportional to 409,808 and 839,848 is: 1,721,158.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,808 : 839,848 = 839,848 : x
  2. Step 2: Convert to fraction form
    409,808/839,848 = 839,848/x
  3. Step 3: Cross multiply
    409,808x = 839,848 × 839,848
  4. Step 4: Simplify right side
    409,808x = 705,344,663,104
  5. Step 5: Solve for x
    x = 705,344,663,104/409,808
  6. Step 6: Final answer
    x = 1,721,158.84

Related Problems

Find third proportional to 204,904 and 419,924
Half scale
Find third proportional to 819,616 and 1,679,696
Double scale
Find third proportional to 409,810 and 839,852
Similar ratio
Find third proportional to 614,712 and 1,259,772
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.