Home / 643,920-1,398,548

Finding the Third Proportional to 643,920 and 1,398,548

Calculator

Solution

The third proportional to 643,920 and 1,398,548 is: 3,037,545.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,920 : 1,398,548 = 1,398,548 : x
  2. Step 2: Convert to fraction form
    643,920/1,398,548 = 1,398,548/x
  3. Step 3: Cross multiply
    643,920x = 1,398,548 × 1,398,548
  4. Step 4: Simplify right side
    643,920x = 1,955,936,508,304
  5. Step 5: Solve for x
    x = 1,955,936,508,304/643,920
  6. Step 6: Final answer
    x = 3,037,545.83

Related Problems

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.