Home / 393,138-842,364

Finding the Third Proportional to 393,138 and 842,364

Calculator

Solution

The third proportional to 393,138 and 842,364 is: 1,804,905.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,138 : 842,364 = 842,364 : x
  2. Step 2: Convert to fraction form
    393,138/842,364 = 842,364/x
  3. Step 3: Cross multiply
    393,138x = 842,364 × 842,364
  4. Step 4: Simplify right side
    393,138x = 709,577,108,496
  5. Step 5: Solve for x
    x = 709,577,108,496/393,138
  6. Step 6: Final answer
    x = 1,804,905.93

Related Problems

Find third proportional to 196,569 and 421,182
Half scale
Find third proportional to 786,276 and 1,684,728
Double scale
Find third proportional to 393,140 and 842,368
Similar ratio
Find third proportional to 589,707 and 1,263,546
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.