Home / 390,646.50-829,273.50

Finding the Third Proportional to 390,646.50 and 829,273.50

Calculator

Solution

The third proportional to 390,646.50 and 829,273.50 is: 1,760,401.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,646.50 : 829,273.50 = 829,273.50 : x
  2. Step 2: Convert to fraction form
    390,646.50/829,273.50 = 829,273.50/x
  3. Step 3: Cross multiply
    390,646.50x = 829,273.50 × 829,273.50
  4. Step 4: Simplify right side
    390,646.50x = 687,694,537,802.25
  5. Step 5: Solve for x
    x = 687,694,537,802.25/390,646.50
  6. Step 6: Final answer
    x = 1,760,401.12

Related Problems

Find third proportional to 195,323.25 and 414,636.75
Half scale
Find third proportional to 781,293 and 1,658,547
Double scale
Find third proportional to 390,649 and 829,278
Similar ratio
Find third proportional to 585,969.75 and 1,243,910.25
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.