Home / 306,969-664,381.50

Finding the Third Proportional to 306,969 and 664,381.50

Calculator

Solution

The third proportional to 306,969 and 664,381.50 is: 1,437,939.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,969 : 664,381.50 = 664,381.50 : x
  2. Step 2: Convert to fraction form
    306,969/664,381.50 = 664,381.50/x
  3. Step 3: Cross multiply
    306,969x = 664,381.50 × 664,381.50
  4. Step 4: Simplify right side
    306,969x = 441,402,777,542.25
  5. Step 5: Solve for x
    x = 441,402,777,542.25/306,969
  6. Step 6: Final answer
    x = 1,437,939.26

Related Problems

Find third proportional to 153,484.50 and 332,190.75
Half scale
Find third proportional to 613,938 and 1,328,763
Double scale
Find third proportional to 306,971 and 664,386
Similar ratio
Find third proportional to 460,453.50 and 996,572.25
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.