Home / 264,647-409,890

Finding the Third Proportional to 264,647 and 409,890

Calculator

Solution

The third proportional to 264,647 and 409,890 is: 634,844.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,647 : 409,890 = 409,890 : x
  2. Step 2: Convert to fraction form
    264,647/409,890 = 409,890/x
  3. Step 3: Cross multiply
    264,647x = 409,890 × 409,890
  4. Step 4: Simplify right side
    264,647x = 168,009,812,100
  5. Step 5: Solve for x
    x = 168,009,812,100/264,647
  6. Step 6: Final answer
    x = 634,844.95

Related Problems

Find third proportional to 132,323.50 and 204,945
Half scale
Find third proportional to 529,294 and 819,780
Double scale
Find third proportional to 264,649 and 409,893
Similar ratio
Find third proportional to 396,970.50 and 614,835
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.