Home / 489,872-693,360

Finding the Third Proportional to 489,872 and 693,360

Calculator

Solution

The third proportional to 489,872 and 693,360 is: 981,374.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,872 : 693,360 = 693,360 : x
  2. Step 2: Convert to fraction form
    489,872/693,360 = 693,360/x
  3. Step 3: Cross multiply
    489,872x = 693,360 × 693,360
  4. Step 4: Simplify right side
    489,872x = 480,748,089,600
  5. Step 5: Solve for x
    x = 480,748,089,600/489,872
  6. Step 6: Final answer
    x = 981,374.91

Related Problems

Find third proportional to 244,936 and 346,680
Half scale
Find third proportional to 979,744 and 1,386,720
Double scale
Find third proportional to 489,874 and 693,363
Similar ratio
Find third proportional to 734,808 and 1,040,040
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.