Home / 395,520-819,078

Finding the Third Proportional to 395,520 and 819,078

Calculator

Solution

The third proportional to 395,520 and 819,078 is: 1,696,219.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,520 : 819,078 = 819,078 : x
  2. Step 2: Convert to fraction form
    395,520/819,078 = 819,078/x
  3. Step 3: Cross multiply
    395,520x = 819,078 × 819,078
  4. Step 4: Simplify right side
    395,520x = 670,888,770,084
  5. Step 5: Solve for x
    x = 670,888,770,084/395,520
  6. Step 6: Final answer
    x = 1,696,219.58

Related Problems

Find third proportional to 197,760 and 409,539
Half scale
Find third proportional to 791,040 and 1,638,156
Double scale
Find third proportional to 395,522 and 819,082
Similar ratio
Find third proportional to 593,280 and 1,228,617
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.