Home / 465.38-621

Finding the Third Proportional to 465.38 and 621

Calculator

Solution

The third proportional to 465.38 and 621 is: 828.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    465.38 : 621 = 621 : x
  2. Step 2: Convert to fraction form
    465.38/621 = 621/x
  3. Step 3: Cross multiply
    465.38x = 621 × 621
  4. Step 4: Simplify right side
    465.38x = 385,641
  5. Step 5: Solve for x
    x = 385,641/465.38
  6. Step 6: Final answer
    x = 828.67

Related Problems

Find third proportional to 232.69 and 310.50
Half scale
Find third proportional to 930.75 and 1,242
Double scale
Find third proportional to 467 and 624
Similar ratio
Find third proportional to 698.06 and 931.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.