Home / 305,220-662,980

Finding the Third Proportional to 305,220 and 662,980

Calculator

Solution

The third proportional to 305,220 and 662,980 is: 1,440,084.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,220 : 662,980 = 662,980 : x
  2. Step 2: Convert to fraction form
    305,220/662,980 = 662,980/x
  3. Step 3: Cross multiply
    305,220x = 662,980 × 662,980
  4. Step 4: Simplify right side
    305,220x = 439,542,480,400
  5. Step 5: Solve for x
    x = 439,542,480,400/305,220
  6. Step 6: Final answer
    x = 1,440,084.14

Related Problems

Find third proportional to 152,610 and 331,490
Half scale
Find third proportional to 610,440 and 1,325,960
Double scale
Find third proportional to 305,222 and 662,984
Similar ratio
Find third proportional to 457,830 and 994,470
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.