Home / 306,121.50-631,891.50

Finding the Third Proportional to 306,121.50 and 631,891.50

Calculator

Solution

The third proportional to 306,121.50 and 631,891.50 is: 1,304,341.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,121.50 : 631,891.50 = 631,891.50 : x
  2. Step 2: Convert to fraction form
    306,121.50/631,891.50 = 631,891.50/x
  3. Step 3: Cross multiply
    306,121.50x = 631,891.50 × 631,891.50
  4. Step 4: Simplify right side
    306,121.50x = 399,286,867,772.25
  5. Step 5: Solve for x
    x = 399,286,867,772.25/306,121.50
  6. Step 6: Final answer
    x = 1,304,341.14

Related Problems

Find third proportional to 153,060.75 and 315,945.75
Half scale
Find third proportional to 612,243 and 1,263,783
Double scale
Find third proportional to 306,124 and 631,896
Similar ratio
Find third proportional to 459,182.25 and 947,837.25
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.