Home / 393,108-842,310

Finding the Third Proportional to 393,108 and 842,310

Calculator

Solution

The third proportional to 393,108 and 842,310 is: 1,804,812.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,108 : 842,310 = 842,310 : x
  2. Step 2: Convert to fraction form
    393,108/842,310 = 842,310/x
  3. Step 3: Cross multiply
    393,108x = 842,310 × 842,310
  4. Step 4: Simplify right side
    393,108x = 709,486,136,100
  5. Step 5: Solve for x
    x = 709,486,136,100/393,108
  6. Step 6: Final answer
    x = 1,804,812.26

Related Problems

Find third proportional to 196,554 and 421,155
Half scale
Find third proportional to 786,216 and 1,684,620
Double scale
Find third proportional to 393,110 and 842,314
Similar ratio
Find third proportional to 589,662 and 1,263,465
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.