Home / 311,939-465,829

Finding the Third Proportional to 311,939 and 465,829

Calculator

Solution

The third proportional to 311,939 and 465,829 is: 695,638.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,939 : 465,829 = 465,829 : x
  2. Step 2: Convert to fraction form
    311,939/465,829 = 465,829/x
  3. Step 3: Cross multiply
    311,939x = 465,829 × 465,829
  4. Step 4: Simplify right side
    311,939x = 216,996,657,241
  5. Step 5: Solve for x
    x = 216,996,657,241/311,939
  6. Step 6: Final answer
    x = 695,638.11

Related Problems

Find third proportional to 155,969.50 and 232,914.50
Half scale
Find third proportional to 623,878 and 931,658
Double scale
Find third proportional to 311,941 and 465,832
Similar ratio
Find third proportional to 467,908.50 and 698,743.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.