Home / 455,310-990,941

Finding the Third Proportional to 455,310 and 990,941

Calculator

Solution

The third proportional to 455,310 and 990,941 is: 2,156,693.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,310 : 990,941 = 990,941 : x
  2. Step 2: Convert to fraction form
    455,310/990,941 = 990,941/x
  3. Step 3: Cross multiply
    455,310x = 990,941 × 990,941
  4. Step 4: Simplify right side
    455,310x = 981,964,065,481
  5. Step 5: Solve for x
    x = 981,964,065,481/455,310
  6. Step 6: Final answer
    x = 2,156,693.39

Related Problems

Find third proportional to 227,655 and 495,470.50
Half scale
Find third proportional to 910,620 and 1,981,882
Double scale
Find third proportional to 455,312 and 990,945
Similar ratio
Find third proportional to 682,965 and 1,486,411.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.