Home / 393,890-859,072

Finding the Third Proportional to 393,890 and 859,072

Calculator

Solution

The third proportional to 393,890 and 859,072 is: 1,873,631.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,890 : 859,072 = 859,072 : x
  2. Step 2: Convert to fraction form
    393,890/859,072 = 859,072/x
  3. Step 3: Cross multiply
    393,890x = 859,072 × 859,072
  4. Step 4: Simplify right side
    393,890x = 738,004,701,184
  5. Step 5: Solve for x
    x = 738,004,701,184/393,890
  6. Step 6: Final answer
    x = 1,873,631.47

Related Problems

Find third proportional to 196,945 and 429,536
Half scale
Find third proportional to 787,780 and 1,718,144
Double scale
Find third proportional to 393,892 and 859,076
Similar ratio
Find third proportional to 590,835 and 1,288,608
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.