Home / 391,042-856,827

Finding the Third Proportional to 391,042 and 856,827

Calculator

Solution

The third proportional to 391,042 and 856,827 is: 1,877,426.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,042 : 856,827 = 856,827 : x
  2. Step 2: Convert to fraction form
    391,042/856,827 = 856,827/x
  3. Step 3: Cross multiply
    391,042x = 856,827 × 856,827
  4. Step 4: Simplify right side
    391,042x = 734,152,507,929
  5. Step 5: Solve for x
    x = 734,152,507,929/391,042
  6. Step 6: Final answer
    x = 1,877,426.23

Related Problems

Find third proportional to 195,521 and 428,413.50
Half scale
Find third proportional to 782,084 and 1,713,654
Double scale
Find third proportional to 391,044 and 856,831
Similar ratio
Find third proportional to 586,563 and 1,285,240.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.