Home / 455,720-981,478

Finding the Third Proportional to 455,720 and 981,478

Calculator

Solution

The third proportional to 455,720 and 981,478 is: 2,113,795.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,720 : 981,478 = 981,478 : x
  2. Step 2: Convert to fraction form
    455,720/981,478 = 981,478/x
  3. Step 3: Cross multiply
    455,720x = 981,478 × 981,478
  4. Step 4: Simplify right side
    455,720x = 963,299,064,484
  5. Step 5: Solve for x
    x = 963,299,064,484/455,720
  6. Step 6: Final answer
    x = 2,113,795.89

Related Problems

Find third proportional to 227,860 and 490,739
Half scale
Find third proportional to 911,440 and 1,962,956
Double scale
Find third proportional to 455,722 and 981,482
Similar ratio
Find third proportional to 683,580 and 1,472,217
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.