Home / 381,408-838,988

Finding the Third Proportional to 381,408 and 838,988

Calculator

Solution

The third proportional to 381,408 and 838,988 is: 1,845,532.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,408 : 838,988 = 838,988 : x
  2. Step 2: Convert to fraction form
    381,408/838,988 = 838,988/x
  3. Step 3: Cross multiply
    381,408x = 838,988 × 838,988
  4. Step 4: Simplify right side
    381,408x = 703,900,864,144
  5. Step 5: Solve for x
    x = 703,900,864,144/381,408
  6. Step 6: Final answer
    x = 1,845,532.51

Related Problems

Find third proportional to 190,704 and 419,494
Half scale
Find third proportional to 762,816 and 1,677,976
Double scale
Find third proportional to 381,410 and 838,992
Similar ratio
Find third proportional to 572,112 and 1,258,482
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.