Home / 580,392-821,988

Finding the Third Proportional to 580,392 and 821,988

Calculator

Solution

The third proportional to 580,392 and 821,988 is: 1,164,151.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,392 : 821,988 = 821,988 : x
  2. Step 2: Convert to fraction form
    580,392/821,988 = 821,988/x
  3. Step 3: Cross multiply
    580,392x = 821,988 × 821,988
  4. Step 4: Simplify right side
    580,392x = 675,664,272,144
  5. Step 5: Solve for x
    x = 675,664,272,144/580,392
  6. Step 6: Final answer
    x = 1,164,151.59

Related Problems

Find third proportional to 290,196 and 410,994
Half scale
Find third proportional to 1,160,784 and 1,643,976
Double scale
Find third proportional to 580,394 and 821,991
Similar ratio
Find third proportional to 870,588 and 1,232,982
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.