Home / 299,856-644,175

Finding the Third Proportional to 299,856 and 644,175

Calculator

Solution

The third proportional to 299,856 and 644,175 is: 1,383,869.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,856 : 644,175 = 644,175 : x
  2. Step 2: Convert to fraction form
    299,856/644,175 = 644,175/x
  3. Step 3: Cross multiply
    299,856x = 644,175 × 644,175
  4. Step 4: Simplify right side
    299,856x = 414,961,430,625
  5. Step 5: Solve for x
    x = 414,961,430,625/299,856
  6. Step 6: Final answer
    x = 1,383,869.03

Related Problems

Find third proportional to 149,928 and 322,087.50
Half scale
Find third proportional to 599,712 and 1,288,350
Double scale
Find third proportional to 299,858 and 644,179
Similar ratio
Find third proportional to 449,784 and 966,262.50
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.