Home / 207,929-478,880

Finding the Third Proportional to 207,929 and 478,880

Calculator

Solution

The third proportional to 207,929 and 478,880 is: 1,102,905.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,929 : 478,880 = 478,880 : x
  2. Step 2: Convert to fraction form
    207,929/478,880 = 478,880/x
  3. Step 3: Cross multiply
    207,929x = 478,880 × 478,880
  4. Step 4: Simplify right side
    207,929x = 229,326,054,400
  5. Step 5: Solve for x
    x = 229,326,054,400/207,929
  6. Step 6: Final answer
    x = 1,102,905.58

Related Problems

Find third proportional to 103,964.50 and 239,440
Half scale
Find third proportional to 415,858 and 957,760
Double scale
Find third proportional to 207,931 and 478,885
Similar ratio
Find third proportional to 311,893.50 and 718,320
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.