Home / 396,312-855,792

Finding the Third Proportional to 396,312 and 855,792

Calculator

Solution

The third proportional to 396,312 and 855,792 is: 1,847,988.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,312 : 855,792 = 855,792 : x
  2. Step 2: Convert to fraction form
    396,312/855,792 = 855,792/x
  3. Step 3: Cross multiply
    396,312x = 855,792 × 855,792
  4. Step 4: Simplify right side
    396,312x = 732,379,947,264
  5. Step 5: Solve for x
    x = 732,379,947,264/396,312
  6. Step 6: Final answer
    x = 1,847,988.32

Related Problems

Find third proportional to 198,156 and 427,896
Half scale
Find third proportional to 792,624 and 1,711,584
Double scale
Find third proportional to 396,314 and 855,796
Similar ratio
Find third proportional to 594,468 and 1,283,688
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.