Home / 640,724-1,409,348

Finding the Third Proportional to 640,724 and 1,409,348

Calculator

Solution

The third proportional to 640,724 and 1,409,348 is: 3,100,027.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,724 : 1,409,348 = 1,409,348 : x
  2. Step 2: Convert to fraction form
    640,724/1,409,348 = 1,409,348/x
  3. Step 3: Cross multiply
    640,724x = 1,409,348 × 1,409,348
  4. Step 4: Simplify right side
    640,724x = 1,986,261,785,104
  5. Step 5: Solve for x
    x = 1,986,261,785,104/640,724
  6. Step 6: Final answer
    x = 3,100,027.13

Related Problems

Find third proportional to 320,362 and 704,674
Half scale
Find third proportional to 1,281,448 and 2,818,696
Double scale
Find third proportional to 640,726 and 1,409,352
Similar ratio
Find third proportional to 961,086 and 2,114,022
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.