Home / 321,606-485,685

Finding the Third Proportional to 321,606 and 485,685

Calculator

Solution

The third proportional to 321,606 and 485,685 is: 733,474.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,606 : 485,685 = 485,685 : x
  2. Step 2: Convert to fraction form
    321,606/485,685 = 485,685/x
  3. Step 3: Cross multiply
    321,606x = 485,685 × 485,685
  4. Step 4: Simplify right side
    321,606x = 235,889,919,225
  5. Step 5: Solve for x
    x = 235,889,919,225/321,606
  6. Step 6: Final answer
    x = 733,474.87

Related Problems

Find third proportional to 160,803 and 242,842.50
Half scale
Find third proportional to 643,212 and 971,370
Double scale
Find third proportional to 321,608 and 485,688
Similar ratio
Find third proportional to 482,409 and 728,527.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.