Home / 310,462-679,040

Finding the Third Proportional to 310,462 and 679,040

Calculator

Solution

The third proportional to 310,462 and 679,040 is: 1,485,190.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,462 : 679,040 = 679,040 : x
  2. Step 2: Convert to fraction form
    310,462/679,040 = 679,040/x
  3. Step 3: Cross multiply
    310,462x = 679,040 × 679,040
  4. Step 4: Simplify right side
    310,462x = 461,095,321,600
  5. Step 5: Solve for x
    x = 461,095,321,600/310,462
  6. Step 6: Final answer
    x = 1,485,190.85

Related Problems

Find third proportional to 155,231 and 339,520
Half scale
Find third proportional to 620,924 and 1,358,080
Double scale
Find third proportional to 310,464 and 679,044
Similar ratio
Find third proportional to 465,693 and 1,018,560
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.