Home / 288,894-644,172

Finding the Third Proportional to 288,894 and 644,172

Calculator

Solution

The third proportional to 288,894 and 644,172 is: 1,436,366.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,894 : 644,172 = 644,172 : x
  2. Step 2: Convert to fraction form
    288,894/644,172 = 644,172/x
  3. Step 3: Cross multiply
    288,894x = 644,172 × 644,172
  4. Step 4: Simplify right side
    288,894x = 414,957,565,584
  5. Step 5: Solve for x
    x = 414,957,565,584/288,894
  6. Step 6: Final answer
    x = 1,436,366.16

Related Problems

Find third proportional to 144,447 and 322,086
Half scale
Find third proportional to 577,788 and 1,288,344
Double scale
Find third proportional to 288,896 and 644,176
Similar ratio
Find third proportional to 433,341 and 966,258
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.