Home / 646,666.50-978,943.50

Finding the Third Proportional to 646,666.50 and 978,943.50

Calculator

Solution

The third proportional to 646,666.50 and 978,943.50 is: 1,481,954.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,666.50 : 978,943.50 = 978,943.50 : x
  2. Step 2: Convert to fraction form
    646,666.50/978,943.50 = 978,943.50/x
  3. Step 3: Cross multiply
    646,666.50x = 978,943.50 × 978,943.50
  4. Step 4: Simplify right side
    646,666.50x = 958,330,376,192.25
  5. Step 5: Solve for x
    x = 958,330,376,192.25/646,666.50
  6. Step 6: Final answer
    x = 1,481,954.57

Related Problems

Find third proportional to 323,333.25 and 489,471.75
Half scale
Find third proportional to 1,293,333 and 1,957,887
Double scale
Find third proportional to 646,669 and 978,947
Similar ratio
Find third proportional to 969,999.75 and 1,468,415.25
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.