Home / 393,093-817,290

Finding the Third Proportional to 393,093 and 817,290

Calculator

Solution

The third proportional to 393,093 and 817,290 is: 1,699,249.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,093 : 817,290 = 817,290 : x
  2. Step 2: Convert to fraction form
    393,093/817,290 = 817,290/x
  3. Step 3: Cross multiply
    393,093x = 817,290 × 817,290
  4. Step 4: Simplify right side
    393,093x = 667,962,944,100
  5. Step 5: Solve for x
    x = 667,962,944,100/393,093
  6. Step 6: Final answer
    x = 1,699,249.14

Related Problems

Find third proportional to 196,546.50 and 408,645
Half scale
Find third proportional to 786,186 and 1,634,580
Double scale
Find third proportional to 393,095 and 817,294
Similar ratio
Find third proportional to 589,639.50 and 1,225,935
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.