Home / 287,362-628,228

Finding the Third Proportional to 287,362 and 628,228

Calculator

Solution

The third proportional to 287,362 and 628,228 is: 1,373,425.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,362 : 628,228 = 628,228 : x
  2. Step 2: Convert to fraction form
    287,362/628,228 = 628,228/x
  3. Step 3: Cross multiply
    287,362x = 628,228 × 628,228
  4. Step 4: Simplify right side
    287,362x = 394,670,419,984
  5. Step 5: Solve for x
    x = 394,670,419,984/287,362
  6. Step 6: Final answer
    x = 1,373,425.92

Related Problems

Find third proportional to 143,681 and 314,114
Half scale
Find third proportional to 574,724 and 1,256,456
Double scale
Find third proportional to 287,364 and 628,232
Similar ratio
Find third proportional to 431,043 and 942,342
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.