Home / 239,919-509,358

Finding the Third Proportional to 239,919 and 509,358

Calculator

Solution

The third proportional to 239,919 and 509,358 is: 1,081,388.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,919 : 509,358 = 509,358 : x
  2. Step 2: Convert to fraction form
    239,919/509,358 = 509,358/x
  3. Step 3: Cross multiply
    239,919x = 509,358 × 509,358
  4. Step 4: Simplify right side
    239,919x = 259,445,572,164
  5. Step 5: Solve for x
    x = 259,445,572,164/239,919
  6. Step 6: Final answer
    x = 1,081,388.19

Related Problems

Find third proportional to 119,959.50 and 254,679
Half scale
Find third proportional to 479,838 and 1,018,716
Double scale
Find third proportional to 239,921 and 509,362
Similar ratio
Find third proportional to 359,878.50 and 764,037
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.