Home / 338,331-743,640

Finding the Third Proportional to 338,331 and 743,640

Calculator

Solution

The third proportional to 338,331 and 743,640 is: 1,634,495.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,331 : 743,640 = 743,640 : x
  2. Step 2: Convert to fraction form
    338,331/743,640 = 743,640/x
  3. Step 3: Cross multiply
    338,331x = 743,640 × 743,640
  4. Step 4: Simplify right side
    338,331x = 553,000,449,600
  5. Step 5: Solve for x
    x = 553,000,449,600/338,331
  6. Step 6: Final answer
    x = 1,634,495.36

Related Problems

Find third proportional to 169,165.50 and 371,820
Half scale
Find third proportional to 676,662 and 1,487,280
Double scale
Find third proportional to 338,333 and 743,644
Similar ratio
Find third proportional to 507,496.50 and 1,115,460
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.