Home / 291,902-628,834

Finding the Third Proportional to 291,902 and 628,834

Calculator

Solution

The third proportional to 291,902 and 628,834 is: 1,354,674.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,902 : 628,834 = 628,834 : x
  2. Step 2: Convert to fraction form
    291,902/628,834 = 628,834/x
  3. Step 3: Cross multiply
    291,902x = 628,834 × 628,834
  4. Step 4: Simplify right side
    291,902x = 395,432,199,556
  5. Step 5: Solve for x
    x = 395,432,199,556/291,902
  6. Step 6: Final answer
    x = 1,354,674.51

Related Problems

Find third proportional to 145,951 and 314,417
Half scale
Find third proportional to 583,804 and 1,257,668
Double scale
Find third proportional to 291,904 and 628,838
Similar ratio
Find third proportional to 437,853 and 943,251
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.