Home / 320,148-689,952

Finding the Third Proportional to 320,148 and 689,952

Calculator

Solution

The third proportional to 320,148 and 689,952 is: 1,486,917.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,148 : 689,952 = 689,952 : x
  2. Step 2: Convert to fraction form
    320,148/689,952 = 689,952/x
  3. Step 3: Cross multiply
    320,148x = 689,952 × 689,952
  4. Step 4: Simplify right side
    320,148x = 476,033,762,304
  5. Step 5: Solve for x
    x = 476,033,762,304/320,148
  6. Step 6: Final answer
    x = 1,486,917.81

Related Problems

Find third proportional to 160,074 and 344,976
Half scale
Find third proportional to 640,296 and 1,379,904
Double scale
Find third proportional to 320,150 and 689,956
Similar ratio
Find third proportional to 480,222 and 1,034,928
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.