Home / 344,479-489,927

Finding the Third Proportional to 344,479 and 489,927

Calculator

Solution

The third proportional to 344,479 and 489,927 is: 696,786.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,479 : 489,927 = 489,927 : x
  2. Step 2: Convert to fraction form
    344,479/489,927 = 489,927/x
  3. Step 3: Cross multiply
    344,479x = 489,927 × 489,927
  4. Step 4: Simplify right side
    344,479x = 240,028,465,329
  5. Step 5: Solve for x
    x = 240,028,465,329/344,479
  6. Step 6: Final answer
    x = 696,786.93

Related Problems

Find third proportional to 172,239.50 and 244,963.50
Half scale
Find third proportional to 688,958 and 979,854
Double scale
Find third proportional to 344,481 and 489,930
Similar ratio
Find third proportional to 516,718.50 and 734,890.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.