Home / 310,728-673,296

Finding the Third Proportional to 310,728 and 673,296

Calculator

Solution

The third proportional to 310,728 and 673,296 is: 1,458,920.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,728 : 673,296 = 673,296 : x
  2. Step 2: Convert to fraction form
    310,728/673,296 = 673,296/x
  3. Step 3: Cross multiply
    310,728x = 673,296 × 673,296
  4. Step 4: Simplify right side
    310,728x = 453,327,503,616
  5. Step 5: Solve for x
    x = 453,327,503,616/310,728
  6. Step 6: Final answer
    x = 1,458,920.68

Related Problems

Find third proportional to 155,364 and 336,648
Half scale
Find third proportional to 621,456 and 1,346,592
Double scale
Find third proportional to 310,730 and 673,300
Similar ratio
Find third proportional to 466,092 and 1,009,944
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.