Home / 405,598-636,233

Finding the Third Proportional to 405,598 and 636,233

Calculator

Solution

The third proportional to 405,598 and 636,233 is: 998,013.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,598 : 636,233 = 636,233 : x
  2. Step 2: Convert to fraction form
    405,598/636,233 = 636,233/x
  3. Step 3: Cross multiply
    405,598x = 636,233 × 636,233
  4. Step 4: Simplify right side
    405,598x = 404,792,430,289
  5. Step 5: Solve for x
    x = 404,792,430,289/405,598
  6. Step 6: Final answer
    x = 998,013.87

Related Problems

Find third proportional to 202,799 and 318,116.50
Half scale
Find third proportional to 811,196 and 1,272,466
Double scale
Find third proportional to 405,600 and 636,236
Similar ratio
Find third proportional to 608,397 and 954,349.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.