Home / 308,496-488,880

Finding the Third Proportional to 308,496 and 488,880

Calculator

Solution

The third proportional to 308,496 and 488,880 is: 774,738.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,496 : 488,880 = 488,880 : x
  2. Step 2: Convert to fraction form
    308,496/488,880 = 488,880/x
  3. Step 3: Cross multiply
    308,496x = 488,880 × 488,880
  4. Step 4: Simplify right side
    308,496x = 239,003,654,400
  5. Step 5: Solve for x
    x = 239,003,654,400/308,496
  6. Step 6: Final answer
    x = 774,738.26

Related Problems

Find third proportional to 154,248 and 244,440
Half scale
Find third proportional to 616,992 and 977,760
Double scale
Find third proportional to 308,498 and 488,883
Similar ratio
Find third proportional to 462,744 and 733,320
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.