Home / 293,383-643,790

Finding the Third Proportional to 293,383 and 643,790

Calculator

Solution

The third proportional to 293,383 and 643,790 is: 1,412,711.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,383 : 643,790 = 643,790 : x
  2. Step 2: Convert to fraction form
    293,383/643,790 = 643,790/x
  3. Step 3: Cross multiply
    293,383x = 643,790 × 643,790
  4. Step 4: Simplify right side
    293,383x = 414,465,564,100
  5. Step 5: Solve for x
    x = 414,465,564,100/293,383
  6. Step 6: Final answer
    x = 1,412,711.59

Related Problems

Find third proportional to 146,691.50 and 321,895
Half scale
Find third proportional to 586,766 and 1,287,580
Double scale
Find third proportional to 293,385 and 643,794
Similar ratio
Find third proportional to 440,074.50 and 965,685
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.