Home / 270,278-423,984

Finding the Third Proportional to 270,278 and 423,984

Calculator

Solution

The third proportional to 270,278 and 423,984 is: 665,101.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,278 : 423,984 = 423,984 : x
  2. Step 2: Convert to fraction form
    270,278/423,984 = 423,984/x
  3. Step 3: Cross multiply
    270,278x = 423,984 × 423,984
  4. Step 4: Simplify right side
    270,278x = 179,762,432,256
  5. Step 5: Solve for x
    x = 179,762,432,256/270,278
  6. Step 6: Final answer
    x = 665,101.98

Related Problems

Find third proportional to 135,139 and 211,992
Half scale
Find third proportional to 540,556 and 847,968
Double scale
Find third proportional to 270,280 and 423,987
Similar ratio
Find third proportional to 405,417 and 635,976
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.