Home / 421,380-928,653

Finding the Third Proportional to 421,380 and 928,653

Calculator

Solution

The third proportional to 421,380 and 928,653 is: 2,046,600.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,380 : 928,653 = 928,653 : x
  2. Step 2: Convert to fraction form
    421,380/928,653 = 928,653/x
  3. Step 3: Cross multiply
    421,380x = 928,653 × 928,653
  4. Step 4: Simplify right side
    421,380x = 862,396,394,409
  5. Step 5: Solve for x
    x = 862,396,394,409/421,380
  6. Step 6: Final answer
    x = 2,046,600.21

Related Problems

Find third proportional to 210,690 and 464,326.50
Half scale
Find third proportional to 842,760 and 1,857,306
Double scale
Find third proportional to 421,382 and 928,657
Similar ratio
Find third proportional to 632,070 and 1,392,979.50
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.