Home / 280,474-617,040

Finding the Third Proportional to 280,474 and 617,040

Calculator

Solution

The third proportional to 280,474 and 617,040 is: 1,357,481.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,474 : 617,040 = 617,040 : x
  2. Step 2: Convert to fraction form
    280,474/617,040 = 617,040/x
  3. Step 3: Cross multiply
    280,474x = 617,040 × 617,040
  4. Step 4: Simplify right side
    280,474x = 380,738,361,600
  5. Step 5: Solve for x
    x = 380,738,361,600/280,474
  6. Step 6: Final answer
    x = 1,357,481.84

Related Problems

Find third proportional to 140,237 and 308,520
Half scale
Find third proportional to 560,948 and 1,234,080
Double scale
Find third proportional to 280,476 and 617,044
Similar ratio
Find third proportional to 420,711 and 925,560
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.