Home / 339,419-670,273

Finding the Third Proportional to 339,419 and 670,273

Calculator

Solution

The third proportional to 339,419 and 670,273 is: 1,323,632.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,419 : 670,273 = 670,273 : x
  2. Step 2: Convert to fraction form
    339,419/670,273 = 670,273/x
  3. Step 3: Cross multiply
    339,419x = 670,273 × 670,273
  4. Step 4: Simplify right side
    339,419x = 449,265,894,529
  5. Step 5: Solve for x
    x = 449,265,894,529/339,419
  6. Step 6: Final answer
    x = 1,323,632.13

Related Problems

Find third proportional to 169,709.50 and 335,136.50
Half scale
Find third proportional to 678,838 and 1,340,546
Double scale
Find third proportional to 339,421 and 670,277
Similar ratio
Find third proportional to 509,128.50 and 1,005,409.50
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.