Home / 342,962-489,219

Finding the Third Proportional to 342,962 and 489,219

Calculator

Solution

The third proportional to 342,962 and 489,219 is: 697,847.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,962 : 489,219 = 489,219 : x
  2. Step 2: Convert to fraction form
    342,962/489,219 = 489,219/x
  3. Step 3: Cross multiply
    342,962x = 489,219 × 489,219
  4. Step 4: Simplify right side
    342,962x = 239,335,229,961
  5. Step 5: Solve for x
    x = 239,335,229,961/342,962
  6. Step 6: Final answer
    x = 697,847.66

Related Problems

Find third proportional to 171,481 and 244,609.50
Half scale
Find third proportional to 685,924 and 978,438
Double scale
Find third proportional to 342,964 and 489,222
Similar ratio
Find third proportional to 514,443 and 733,828.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.