Home / 390,524-804,372

Finding the Third Proportional to 390,524 and 804,372

Calculator

Solution

The third proportional to 390,524 and 804,372 is: 1,656,785.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,524 : 804,372 = 804,372 : x
  2. Step 2: Convert to fraction form
    390,524/804,372 = 804,372/x
  3. Step 3: Cross multiply
    390,524x = 804,372 × 804,372
  4. Step 4: Simplify right side
    390,524x = 647,014,314,384
  5. Step 5: Solve for x
    x = 647,014,314,384/390,524
  6. Step 6: Final answer
    x = 1,656,785.02

Related Problems

Find third proportional to 195,262 and 402,186
Half scale
Find third proportional to 781,048 and 1,608,744
Double scale
Find third proportional to 390,526 and 804,376
Similar ratio
Find third proportional to 585,786 and 1,206,558
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.