Home / 280,480-603,728

Finding the Third Proportional to 280,480 and 603,728

Calculator

Solution

The third proportional to 280,480 and 603,728 is: 1,299,513.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,480 : 603,728 = 603,728 : x
  2. Step 2: Convert to fraction form
    280,480/603,728 = 603,728/x
  3. Step 3: Cross multiply
    280,480x = 603,728 × 603,728
  4. Step 4: Simplify right side
    280,480x = 364,487,497,984
  5. Step 5: Solve for x
    x = 364,487,497,984/280,480
  6. Step 6: Final answer
    x = 1,299,513.33

Related Problems

Find third proportional to 140,240 and 301,864
Half scale
Find third proportional to 560,960 and 1,207,456
Double scale
Find third proportional to 280,482 and 603,732
Similar ratio
Find third proportional to 420,720 and 905,592
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.