Home / 299,837-644,138

Finding the Third Proportional to 299,837 and 644,138

Calculator

Solution

The third proportional to 299,837 and 644,138 is: 1,383,797.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,837 : 644,138 = 644,138 : x
  2. Step 2: Convert to fraction form
    299,837/644,138 = 644,138/x
  3. Step 3: Cross multiply
    299,837x = 644,138 × 644,138
  4. Step 4: Simplify right side
    299,837x = 414,913,763,044
  5. Step 5: Solve for x
    x = 414,913,763,044/299,837
  6. Step 6: Final answer
    x = 1,383,797.74

Related Problems

Find third proportional to 149,918.50 and 322,069
Half scale
Find third proportional to 599,674 and 1,288,276
Double scale
Find third proportional to 299,839 and 644,142
Similar ratio
Find third proportional to 449,755.50 and 966,207
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.