Home / 277,834-430,480

Finding the Third Proportional to 277,834 and 430,480

Calculator

Solution

The third proportional to 277,834 and 430,480 is: 666,991.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,834 : 430,480 = 430,480 : x
  2. Step 2: Convert to fraction form
    277,834/430,480 = 430,480/x
  3. Step 3: Cross multiply
    277,834x = 430,480 × 430,480
  4. Step 4: Simplify right side
    277,834x = 185,313,030,400
  5. Step 5: Solve for x
    x = 185,313,030,400/277,834
  6. Step 6: Final answer
    x = 666,991.91

Related Problems

Find third proportional to 138,917 and 215,240
Half scale
Find third proportional to 555,668 and 860,960
Double scale
Find third proportional to 277,836 and 430,483
Similar ratio
Find third proportional to 416,751 and 645,720
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.