Home / 393,142-842,372

Finding the Third Proportional to 393,142 and 842,372

Calculator

Solution

The third proportional to 393,142 and 842,372 is: 1,804,921.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,142 : 842,372 = 842,372 : x
  2. Step 2: Convert to fraction form
    393,142/842,372 = 842,372/x
  3. Step 3: Cross multiply
    393,142x = 842,372 × 842,372
  4. Step 4: Simplify right side
    393,142x = 709,590,586,384
  5. Step 5: Solve for x
    x = 709,590,586,384/393,142
  6. Step 6: Final answer
    x = 1,804,921.85

Related Problems

Find third proportional to 196,571 and 421,186
Half scale
Find third proportional to 786,284 and 1,684,744
Double scale
Find third proportional to 393,144 and 842,376
Similar ratio
Find third proportional to 589,713 and 1,263,558
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.