Home / 381,386-822,748

Finding the Third Proportional to 381,386 and 822,748

Calculator

Solution

The third proportional to 381,386 and 822,748 is: 1,774,879.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,386 : 822,748 = 822,748 : x
  2. Step 2: Convert to fraction form
    381,386/822,748 = 822,748/x
  3. Step 3: Cross multiply
    381,386x = 822,748 × 822,748
  4. Step 4: Simplify right side
    381,386x = 676,914,271,504
  5. Step 5: Solve for x
    x = 676,914,271,504/381,386
  6. Step 6: Final answer
    x = 1,774,879.71

Related Problems

Find third proportional to 190,693 and 411,374
Half scale
Find third proportional to 762,772 and 1,645,496
Double scale
Find third proportional to 381,388 and 822,752
Similar ratio
Find third proportional to 572,079 and 1,234,122
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.