Home / 306,745-628,363

Finding the Third Proportional to 306,745 and 628,363

Calculator

Solution

The third proportional to 306,745 and 628,363 is: 1,287,193.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,745 : 628,363 = 628,363 : x
  2. Step 2: Convert to fraction form
    306,745/628,363 = 628,363/x
  3. Step 3: Cross multiply
    306,745x = 628,363 × 628,363
  4. Step 4: Simplify right side
    306,745x = 394,840,059,769
  5. Step 5: Solve for x
    x = 394,840,059,769/306,745
  6. Step 6: Final answer
    x = 1,287,193.14

Related Problems

Find third proportional to 153,372.50 and 314,181.50
Half scale
Find third proportional to 613,490 and 1,256,726
Double scale
Find third proportional to 306,747 and 628,367
Similar ratio
Find third proportional to 460,117.50 and 942,544.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.