Home / 422,479-911,318

Finding the Third Proportional to 422,479 and 911,318

Calculator

Solution

The third proportional to 422,479 and 911,318 is: 1,965,779.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,479 : 911,318 = 911,318 : x
  2. Step 2: Convert to fraction form
    422,479/911,318 = 911,318/x
  3. Step 3: Cross multiply
    422,479x = 911,318 × 911,318
  4. Step 4: Simplify right side
    422,479x = 830,500,497,124
  5. Step 5: Solve for x
    x = 830,500,497,124/422,479
  6. Step 6: Final answer
    x = 1,965,779.36

Related Problems

Find third proportional to 211,239.50 and 455,659
Half scale
Find third proportional to 844,958 and 1,822,636
Double scale
Find third proportional to 422,481 and 911,322
Similar ratio
Find third proportional to 633,718.50 and 1,366,977
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.