Home / 323,385-680,288

Finding the Third Proportional to 323,385 and 680,288

Calculator

Solution

The third proportional to 323,385 and 680,288 is: 1,431,086.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,385 : 680,288 = 680,288 : x
  2. Step 2: Convert to fraction form
    323,385/680,288 = 680,288/x
  3. Step 3: Cross multiply
    323,385x = 680,288 × 680,288
  4. Step 4: Simplify right side
    323,385x = 462,791,762,944
  5. Step 5: Solve for x
    x = 462,791,762,944/323,385
  6. Step 6: Final answer
    x = 1,431,086.05

Related Problems

Find third proportional to 161,692.50 and 340,144
Half scale
Find third proportional to 646,770 and 1,360,576
Double scale
Find third proportional to 323,387 and 680,292
Similar ratio
Find third proportional to 485,077.50 and 1,020,432
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.