Home / 291,066-636,236

Finding the Third Proportional to 291,066 and 636,236

Calculator

Solution

The third proportional to 291,066 and 636,236 is: 1,390,736.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,066 : 636,236 = 636,236 : x
  2. Step 2: Convert to fraction form
    291,066/636,236 = 636,236/x
  3. Step 3: Cross multiply
    291,066x = 636,236 × 636,236
  4. Step 4: Simplify right side
    291,066x = 404,796,247,696
  5. Step 5: Solve for x
    x = 404,796,247,696/291,066
  6. Step 6: Final answer
    x = 1,390,736.97

Related Problems

Find third proportional to 145,533 and 318,118
Half scale
Find third proportional to 582,132 and 1,272,472
Double scale
Find third proportional to 291,068 and 636,240
Similar ratio
Find third proportional to 436,599 and 954,354
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.