Home / 305,278-663,100

Finding the Third Proportional to 305,278 and 663,100

Calculator

Solution

The third proportional to 305,278 and 663,100 is: 1,440,331.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,278 : 663,100 = 663,100 : x
  2. Step 2: Convert to fraction form
    305,278/663,100 = 663,100/x
  3. Step 3: Cross multiply
    305,278x = 663,100 × 663,100
  4. Step 4: Simplify right side
    305,278x = 439,701,610,000
  5. Step 5: Solve for x
    x = 439,701,610,000/305,278
  6. Step 6: Final answer
    x = 1,440,331.80

Related Problems

Find third proportional to 152,639 and 331,550
Half scale
Find third proportional to 610,556 and 1,326,200
Double scale
Find third proportional to 305,280 and 663,104
Similar ratio
Find third proportional to 457,917 and 994,650
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.