Home / 310,434-668,424

Finding the Third Proportional to 310,434 and 668,424

Calculator

Solution

The third proportional to 310,434 and 668,424 is: 1,439,245.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,434 : 668,424 = 668,424 : x
  2. Step 2: Convert to fraction form
    310,434/668,424 = 668,424/x
  3. Step 3: Cross multiply
    310,434x = 668,424 × 668,424
  4. Step 4: Simplify right side
    310,434x = 446,790,643,776
  5. Step 5: Solve for x
    x = 446,790,643,776/310,434
  6. Step 6: Final answer
    x = 1,439,245.20

Related Problems

Find third proportional to 155,217 and 334,212
Half scale
Find third proportional to 620,868 and 1,336,848
Double scale
Find third proportional to 310,436 and 668,428
Similar ratio
Find third proportional to 465,651 and 1,002,636
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.