Home / 310,456-679,029

Finding the Third Proportional to 310,456 and 679,029

Calculator

Solution

The third proportional to 310,456 and 679,029 is: 1,485,171.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,456 : 679,029 = 679,029 : x
  2. Step 2: Convert to fraction form
    310,456/679,029 = 679,029/x
  3. Step 3: Cross multiply
    310,456x = 679,029 × 679,029
  4. Step 4: Simplify right side
    310,456x = 461,080,382,841
  5. Step 5: Solve for x
    x = 461,080,382,841/310,456
  6. Step 6: Final answer
    x = 1,485,171.43

Related Problems

Find third proportional to 155,228 and 339,514.50
Half scale
Find third proportional to 620,912 and 1,358,058
Double scale
Find third proportional to 310,458 and 679,033
Similar ratio
Find third proportional to 465,684 and 1,018,543.50
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.