Home / 276,291-427,923

Finding the Third Proportional to 276,291 and 427,923

Calculator

Solution

The third proportional to 276,291 and 427,923 is: 662,772.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,291 : 427,923 = 427,923 : x
  2. Step 2: Convert to fraction form
    276,291/427,923 = 427,923/x
  3. Step 3: Cross multiply
    276,291x = 427,923 × 427,923
  4. Step 4: Simplify right side
    276,291x = 183,118,093,929
  5. Step 5: Solve for x
    x = 183,118,093,929/276,291
  6. Step 6: Final answer
    x = 662,772.56

Related Problems

Find third proportional to 138,145.50 and 213,961.50
Half scale
Find third proportional to 552,582 and 855,846
Double scale
Find third proportional to 276,293 and 427,926
Similar ratio
Find third proportional to 414,436.50 and 641,884.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.