Home / 427,316-664,284

Finding the Third Proportional to 427,316 and 664,284

Calculator

Solution

The third proportional to 427,316 and 664,284 is: 1,032,662.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,316 : 664,284 = 664,284 : x
  2. Step 2: Convert to fraction form
    427,316/664,284 = 664,284/x
  3. Step 3: Cross multiply
    427,316x = 664,284 × 664,284
  4. Step 4: Simplify right side
    427,316x = 441,273,232,656
  5. Step 5: Solve for x
    x = 441,273,232,656/427,316
  6. Step 6: Final answer
    x = 1,032,662.56

Related Problems

Find third proportional to 213,658 and 332,142
Half scale
Find third proportional to 854,632 and 1,328,568
Double scale
Find third proportional to 427,318 and 664,287
Similar ratio
Find third proportional to 640,974 and 996,426
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.