Home / 296,586-639,828

Finding the Third Proportional to 296,586 and 639,828

Calculator

Solution

The third proportional to 296,586 and 639,828 is: 1,380,307.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,586 : 639,828 = 639,828 : x
  2. Step 2: Convert to fraction form
    296,586/639,828 = 639,828/x
  3. Step 3: Cross multiply
    296,586x = 639,828 × 639,828
  4. Step 4: Simplify right side
    296,586x = 409,379,869,584
  5. Step 5: Solve for x
    x = 409,379,869,584/296,586
  6. Step 6: Final answer
    x = 1,380,307.46

Related Problems

Find third proportional to 148,293 and 319,914
Half scale
Find third proportional to 593,172 and 1,279,656
Double scale
Find third proportional to 296,588 and 639,832
Similar ratio
Find third proportional to 444,879 and 959,742
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.