Home / 279,079-445,547

Finding the Third Proportional to 279,079 and 445,547

Calculator

Solution

The third proportional to 279,079 and 445,547 is: 711,311.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,079 : 445,547 = 445,547 : x
  2. Step 2: Convert to fraction form
    279,079/445,547 = 445,547/x
  3. Step 3: Cross multiply
    279,079x = 445,547 × 445,547
  4. Step 4: Simplify right side
    279,079x = 198,512,129,209
  5. Step 5: Solve for x
    x = 198,512,129,209/279,079
  6. Step 6: Final answer
    x = 711,311.60

Related Problems

Find third proportional to 139,539.50 and 222,773.50
Half scale
Find third proportional to 558,158 and 891,094
Double scale
Find third proportional to 279,081 and 445,550
Similar ratio
Find third proportional to 418,618.50 and 668,320.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.