Home / 393,040-842,156

Finding the Third Proportional to 393,040 and 842,156

Calculator

Solution

The third proportional to 393,040 and 842,156 is: 1,804,464.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,040 : 842,156 = 842,156 : x
  2. Step 2: Convert to fraction form
    393,040/842,156 = 842,156/x
  3. Step 3: Cross multiply
    393,040x = 842,156 × 842,156
  4. Step 4: Simplify right side
    393,040x = 709,226,728,336
  5. Step 5: Solve for x
    x = 709,226,728,336/393,040
  6. Step 6: Final answer
    x = 1,804,464.50

Related Problems

Find third proportional to 196,520 and 421,078
Half scale
Find third proportional to 786,080 and 1,684,312
Double scale
Find third proportional to 393,042 and 842,160
Similar ratio
Find third proportional to 589,560 and 1,263,234
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.