Home / 314,211-664,818

Finding the Third Proportional to 314,211 and 664,818

Calculator

Solution

The third proportional to 314,211 and 664,818 is: 1,406,643.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,211 : 664,818 = 664,818 : x
  2. Step 2: Convert to fraction form
    314,211/664,818 = 664,818/x
  3. Step 3: Cross multiply
    314,211x = 664,818 × 664,818
  4. Step 4: Simplify right side
    314,211x = 441,982,973,124
  5. Step 5: Solve for x
    x = 441,982,973,124/314,211
  6. Step 6: Final answer
    x = 1,406,643.86

Related Problems

Find third proportional to 157,105.50 and 332,409
Half scale
Find third proportional to 628,422 and 1,329,636
Double scale
Find third proportional to 314,213 and 664,822
Similar ratio
Find third proportional to 471,316.50 and 997,227
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.