Home / 640,818-1,384,424

Finding the Third Proportional to 640,818 and 1,384,424

Calculator

Solution

The third proportional to 640,818 and 1,384,424 is: 2,990,911.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,818 : 1,384,424 = 1,384,424 : x
  2. Step 2: Convert to fraction form
    640,818/1,384,424 = 1,384,424/x
  3. Step 3: Cross multiply
    640,818x = 1,384,424 × 1,384,424
  4. Step 4: Simplify right side
    640,818x = 1,916,629,811,776
  5. Step 5: Solve for x
    x = 1,916,629,811,776/640,818
  6. Step 6: Final answer
    x = 2,990,911.32

Related Problems

Find third proportional to 320,409 and 692,212
Half scale
Find third proportional to 1,281,636 and 2,768,848
Double scale
Find third proportional to 640,820 and 1,384,428
Similar ratio
Find third proportional to 961,227 and 2,076,636
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.