Home / 328,238-706,690

Finding the Third Proportional to 328,238 and 706,690

Calculator

Solution

The third proportional to 328,238 and 706,690 is: 1,521,489.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,238 : 706,690 = 706,690 : x
  2. Step 2: Convert to fraction form
    328,238/706,690 = 706,690/x
  3. Step 3: Cross multiply
    328,238x = 706,690 × 706,690
  4. Step 4: Simplify right side
    328,238x = 499,410,756,100
  5. Step 5: Solve for x
    x = 499,410,756,100/328,238
  6. Step 6: Final answer
    x = 1,521,489.76

Related Problems

Find third proportional to 164,119 and 353,345
Half scale
Find third proportional to 656,476 and 1,413,380
Double scale
Find third proportional to 328,240 and 706,694
Similar ratio
Find third proportional to 492,357 and 1,060,035
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.