Home / 559,622-1,221,689

Finding the Third Proportional to 559,622 and 1,221,689

Calculator

Solution

The third proportional to 559,622 and 1,221,689 is: 2,667,021.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,622 : 1,221,689 = 1,221,689 : x
  2. Step 2: Convert to fraction form
    559,622/1,221,689 = 1,221,689/x
  3. Step 3: Cross multiply
    559,622x = 1,221,689 × 1,221,689
  4. Step 4: Simplify right side
    559,622x = 1,492,524,012,721
  5. Step 5: Solve for x
    x = 1,492,524,012,721/559,622
  6. Step 6: Final answer
    x = 2,667,021.69

Related Problems

Find third proportional to 279,811 and 610,844.50
Half scale
Find third proportional to 1,119,244 and 2,443,378
Double scale
Find third proportional to 559,624 and 1,221,693
Similar ratio
Find third proportional to 839,433 and 1,832,533.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.