Home / 489,728-717,825

Finding the Third Proportional to 489,728 and 717,825

Calculator

Solution

The third proportional to 489,728 and 717,825 is: 1,052,161.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,728 : 717,825 = 717,825 : x
  2. Step 2: Convert to fraction form
    489,728/717,825 = 717,825/x
  3. Step 3: Cross multiply
    489,728x = 717,825 × 717,825
  4. Step 4: Simplify right side
    489,728x = 515,272,730,625
  5. Step 5: Solve for x
    x = 515,272,730,625/489,728
  6. Step 6: Final answer
    x = 1,052,161.06

Related Problems

Find third proportional to 244,864 and 358,912.50
Half scale
Find third proportional to 979,456 and 1,435,650
Double scale
Find third proportional to 489,730 and 717,828
Similar ratio
Find third proportional to 734,592 and 1,076,737.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.