Home / 678,733-1,340,329

Finding the Third Proportional to 678,733 and 1,340,329

Calculator

Solution

The third proportional to 678,733 and 1,340,329 is: 2,646,816.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,733 : 1,340,329 = 1,340,329 : x
  2. Step 2: Convert to fraction form
    678,733/1,340,329 = 1,340,329/x
  3. Step 3: Cross multiply
    678,733x = 1,340,329 × 1,340,329
  4. Step 4: Simplify right side
    678,733x = 1,796,481,828,241
  5. Step 5: Solve for x
    x = 1,796,481,828,241/678,733
  6. Step 6: Final answer
    x = 2,646,816.68

Related Problems

Find third proportional to 339,366.50 and 670,164.50
Half scale
Find third proportional to 1,357,466 and 2,680,658
Double scale
Find third proportional to 678,735 and 1,340,333
Similar ratio
Find third proportional to 1,018,099.50 and 2,010,493.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.97) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.