Home / 390,180-838,556

Finding the Third Proportional to 390,180 and 838,556

Calculator

Solution

The third proportional to 390,180 and 838,556 is: 1,802,184.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,180 : 838,556 = 838,556 : x
  2. Step 2: Convert to fraction form
    390,180/838,556 = 838,556/x
  3. Step 3: Cross multiply
    390,180x = 838,556 × 838,556
  4. Step 4: Simplify right side
    390,180x = 703,176,165,136
  5. Step 5: Solve for x
    x = 703,176,165,136/390,180
  6. Step 6: Final answer
    x = 1,802,184.03

Related Problems

Find third proportional to 195,090 and 419,278
Half scale
Find third proportional to 780,360 and 1,677,112
Double scale
Find third proportional to 390,182 and 838,560
Similar ratio
Find third proportional to 585,270 and 1,257,834
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.