Home / 386,298-807,894

Finding the Third Proportional to 386,298 and 807,894

Calculator

Solution

The third proportional to 386,298 and 807,894 is: 1,689,609.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,298 : 807,894 = 807,894 : x
  2. Step 2: Convert to fraction form
    386,298/807,894 = 807,894/x
  3. Step 3: Cross multiply
    386,298x = 807,894 × 807,894
  4. Step 4: Simplify right side
    386,298x = 652,692,715,236
  5. Step 5: Solve for x
    x = 652,692,715,236/386,298
  6. Step 6: Final answer
    x = 1,689,609.36

Related Problems

Find third proportional to 193,149 and 403,947
Half scale
Find third proportional to 772,596 and 1,615,788
Double scale
Find third proportional to 386,300 and 807,898
Similar ratio
Find third proportional to 579,447 and 1,211,841
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.