Home / 270,474-420,450

Finding the Third Proportional to 270,474 and 420,450

Calculator

Solution

The third proportional to 270,474 and 420,450 is: 653,586.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,474 : 420,450 = 420,450 : x
  2. Step 2: Convert to fraction form
    270,474/420,450 = 420,450/x
  3. Step 3: Cross multiply
    270,474x = 420,450 × 420,450
  4. Step 4: Simplify right side
    270,474x = 176,778,202,500
  5. Step 5: Solve for x
    x = 176,778,202,500/270,474
  6. Step 6: Final answer
    x = 653,586.68

Related Problems

Find third proportional to 135,237 and 210,225
Half scale
Find third proportional to 540,948 and 840,900
Double scale
Find third proportional to 270,476 and 420,453
Similar ratio
Find third proportional to 405,711 and 630,675
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.