Home / 640,746-1,409,391

Finding the Third Proportional to 640,746 and 1,409,391

Calculator

Solution

The third proportional to 640,746 and 1,409,391 is: 3,100,109.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,746 : 1,409,391 = 1,409,391 : x
  2. Step 2: Convert to fraction form
    640,746/1,409,391 = 1,409,391/x
  3. Step 3: Cross multiply
    640,746x = 1,409,391 × 1,409,391
  4. Step 4: Simplify right side
    640,746x = 1,986,382,990,881
  5. Step 5: Solve for x
    x = 1,986,382,990,881/640,746
  6. Step 6: Final answer
    x = 3,100,109.86

Related Problems

Find third proportional to 320,373 and 704,695.50
Half scale
Find third proportional to 1,281,492 and 2,818,782
Double scale
Find third proportional to 640,748 and 1,409,395
Similar ratio
Find third proportional to 961,119 and 2,114,086.50
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.