Home / 427,282-661,394

Finding the Third Proportional to 427,282 and 661,394

Calculator

Solution

The third proportional to 427,282 and 661,394 is: 1,023,778.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,282 : 661,394 = 661,394 : x
  2. Step 2: Convert to fraction form
    427,282/661,394 = 661,394/x
  3. Step 3: Cross multiply
    427,282x = 661,394 × 661,394
  4. Step 4: Simplify right side
    427,282x = 437,442,023,236
  5. Step 5: Solve for x
    x = 437,442,023,236/427,282
  6. Step 6: Final answer
    x = 1,023,778.26

Related Problems

Find third proportional to 213,641 and 330,697
Half scale
Find third proportional to 854,564 and 1,322,788
Double scale
Find third proportional to 427,284 and 661,397
Similar ratio
Find third proportional to 640,923 and 992,091
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.