Home / 428,834-914,620

Finding the Third Proportional to 428,834 and 914,620

Calculator

Solution

The third proportional to 428,834 and 914,620 is: 1,950,707.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,834 : 914,620 = 914,620 : x
  2. Step 2: Convert to fraction form
    428,834/914,620 = 914,620/x
  3. Step 3: Cross multiply
    428,834x = 914,620 × 914,620
  4. Step 4: Simplify right side
    428,834x = 836,529,744,400
  5. Step 5: Solve for x
    x = 836,529,744,400/428,834
  6. Step 6: Final answer
    x = 1,950,707.60

Related Problems

Find third proportional to 214,417 and 457,310
Half scale
Find third proportional to 857,668 and 1,829,240
Double scale
Find third proportional to 428,836 and 914,624
Similar ratio
Find third proportional to 643,251 and 1,371,930
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.