Home / 492-624

Finding the Third Proportional to 492 and 624

Calculator

Solution

The third proportional to 492 and 624 is: 791.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    492 : 624 = 624 : x
  2. Step 2: Convert to fraction form
    492/624 = 624/x
  3. Step 3: Cross multiply
    492x = 624 × 624
  4. Step 4: Simplify right side
    492x = 389,376
  5. Step 5: Solve for x
    x = 389,376/492
  6. Step 6: Final answer
    x = 791.41

Related Problems

Find third proportional to 246 and 312
Half scale
Find third proportional to 984 and 1,248
Double scale
Find third proportional to 494 and 627
Similar ratio
Find third proportional to 738 and 936
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.27) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.