Home / 294,903-639,738

Finding the Third Proportional to 294,903 and 639,738

Calculator

Solution

The third proportional to 294,903 and 639,738 is: 1,387,794.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,903 : 639,738 = 639,738 : x
  2. Step 2: Convert to fraction form
    294,903/639,738 = 639,738/x
  3. Step 3: Cross multiply
    294,903x = 639,738 × 639,738
  4. Step 4: Simplify right side
    294,903x = 409,264,708,644
  5. Step 5: Solve for x
    x = 409,264,708,644/294,903
  6. Step 6: Final answer
    x = 1,387,794.32

Related Problems

Find third proportional to 147,451.50 and 319,869
Half scale
Find third proportional to 589,806 and 1,279,476
Double scale
Find third proportional to 294,905 and 639,742
Similar ratio
Find third proportional to 442,354.50 and 959,607
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.