Home / 299,468-642,748

Finding the Third Proportional to 299,468 and 642,748

Calculator

Solution

The third proportional to 299,468 and 642,748 is: 1,379,529.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,468 : 642,748 = 642,748 : x
  2. Step 2: Convert to fraction form
    299,468/642,748 = 642,748/x
  3. Step 3: Cross multiply
    299,468x = 642,748 × 642,748
  4. Step 4: Simplify right side
    299,468x = 413,124,991,504
  5. Step 5: Solve for x
    x = 413,124,991,504/299,468
  6. Step 6: Final answer
    x = 1,379,529.67

Related Problems

Find third proportional to 149,734 and 321,374
Half scale
Find third proportional to 598,936 and 1,285,496
Double scale
Find third proportional to 299,470 and 642,752
Similar ratio
Find third proportional to 449,202 and 964,122
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.