Home / 323,848-490,290

Finding the Third Proportional to 323,848 and 490,290

Calculator

Solution

The third proportional to 323,848 and 490,290 is: 742,275.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,848 : 490,290 = 490,290 : x
  2. Step 2: Convert to fraction form
    323,848/490,290 = 490,290/x
  3. Step 3: Cross multiply
    323,848x = 490,290 × 490,290
  4. Step 4: Simplify right side
    323,848x = 240,384,284,100
  5. Step 5: Solve for x
    x = 240,384,284,100/323,848
  6. Step 6: Final answer
    x = 742,275.03

Related Problems

Find third proportional to 161,924 and 245,145
Half scale
Find third proportional to 647,696 and 980,580
Double scale
Find third proportional to 323,850 and 490,293
Similar ratio
Find third proportional to 485,772 and 735,435
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.