Home / 316,447-644,644

Finding the Third Proportional to 316,447 and 644,644

Calculator

Solution

The third proportional to 316,447 and 644,644 is: 1,313,224.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,447 : 644,644 = 644,644 : x
  2. Step 2: Convert to fraction form
    316,447/644,644 = 644,644/x
  3. Step 3: Cross multiply
    316,447x = 644,644 × 644,644
  4. Step 4: Simplify right side
    316,447x = 415,565,886,736
  5. Step 5: Solve for x
    x = 415,565,886,736/316,447
  6. Step 6: Final answer
    x = 1,313,224.29

Related Problems

Find third proportional to 158,223.50 and 322,322
Half scale
Find third proportional to 632,894 and 1,289,288
Double scale
Find third proportional to 316,449 and 644,648
Similar ratio
Find third proportional to 474,670.50 and 966,966
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.