Home / 415,296-909,216

Finding the Third Proportional to 415,296 and 909,216

Calculator

Solution

The third proportional to 415,296 and 909,216 is: 1,990,565.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,296 : 909,216 = 909,216 : x
  2. Step 2: Convert to fraction form
    415,296/909,216 = 909,216/x
  3. Step 3: Cross multiply
    415,296x = 909,216 × 909,216
  4. Step 4: Simplify right side
    415,296x = 826,673,734,656
  5. Step 5: Solve for x
    x = 826,673,734,656/415,296
  6. Step 6: Final answer
    x = 1,990,565.13

Related Problems

Find third proportional to 207,648 and 454,608
Half scale
Find third proportional to 830,592 and 1,818,432
Double scale
Find third proportional to 415,298 and 909,220
Similar ratio
Find third proportional to 622,944 and 1,363,824
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.