Home / 294,430-638,648

Finding the Third Proportional to 294,430 and 638,648

Calculator

Solution

The third proportional to 294,430 and 638,648 is: 1,385,291.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,430 : 638,648 = 638,648 : x
  2. Step 2: Convert to fraction form
    294,430/638,648 = 638,648/x
  3. Step 3: Cross multiply
    294,430x = 638,648 × 638,648
  4. Step 4: Simplify right side
    294,430x = 407,871,267,904
  5. Step 5: Solve for x
    x = 407,871,267,904/294,430
  6. Step 6: Final answer
    x = 1,385,291.13

Related Problems

Find third proportional to 147,215 and 319,324
Half scale
Find third proportional to 588,860 and 1,277,296
Double scale
Find third proportional to 294,432 and 638,652
Similar ratio
Find third proportional to 441,645 and 957,972
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.