Home / 427,372-664,388

Finding the Third Proportional to 427,372 and 664,388

Calculator

Solution

The third proportional to 427,372 and 664,388 is: 1,032,850.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,372 : 664,388 = 664,388 : x
  2. Step 2: Convert to fraction form
    427,372/664,388 = 664,388/x
  3. Step 3: Cross multiply
    427,372x = 664,388 × 664,388
  4. Step 4: Simplify right side
    427,372x = 441,411,414,544
  5. Step 5: Solve for x
    x = 441,411,414,544/427,372
  6. Step 6: Final answer
    x = 1,032,850.57

Related Problems

Find third proportional to 213,686 and 332,194
Half scale
Find third proportional to 854,744 and 1,328,776
Double scale
Find third proportional to 427,374 and 664,391
Similar ratio
Find third proportional to 641,058 and 996,582
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.