Home / 301,380-644,704

Finding the Third Proportional to 301,380 and 644,704

Calculator

Solution

The third proportional to 301,380 and 644,704 is: 1,379,133.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,380 : 644,704 = 644,704 : x
  2. Step 2: Convert to fraction form
    301,380/644,704 = 644,704/x
  3. Step 3: Cross multiply
    301,380x = 644,704 × 644,704
  4. Step 4: Simplify right side
    301,380x = 415,643,247,616
  5. Step 5: Solve for x
    x = 415,643,247,616/301,380
  6. Step 6: Final answer
    x = 1,379,133.48

Related Problems

Find third proportional to 150,690 and 322,352
Half scale
Find third proportional to 602,760 and 1,289,408
Double scale
Find third proportional to 301,382 and 644,708
Similar ratio
Find third proportional to 452,070 and 967,056
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.