Home / 281,130-619,860

Finding the Third Proportional to 281,130 and 619,860

Calculator

Solution

The third proportional to 281,130 and 619,860 is: 1,366,721.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,130 : 619,860 = 619,860 : x
  2. Step 2: Convert to fraction form
    281,130/619,860 = 619,860/x
  3. Step 3: Cross multiply
    281,130x = 619,860 × 619,860
  4. Step 4: Simplify right side
    281,130x = 384,226,419,600
  5. Step 5: Solve for x
    x = 384,226,419,600/281,130
  6. Step 6: Final answer
    x = 1,366,721.52

Related Problems

Find third proportional to 140,565 and 309,930
Half scale
Find third proportional to 562,260 and 1,239,720
Double scale
Find third proportional to 281,132 and 619,864
Similar ratio
Find third proportional to 421,695 and 929,790
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.