Home / 242,378-520,740

Finding the Third Proportional to 242,378 and 520,740

Calculator

Solution

The third proportional to 242,378 and 520,740 is: 1,118,790.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,378 : 520,740 = 520,740 : x
  2. Step 2: Convert to fraction form
    242,378/520,740 = 520,740/x
  3. Step 3: Cross multiply
    242,378x = 520,740 × 520,740
  4. Step 4: Simplify right side
    242,378x = 271,170,147,600
  5. Step 5: Solve for x
    x = 271,170,147,600/242,378
  6. Step 6: Final answer
    x = 1,118,790.27

Related Problems

Find third proportional to 121,189 and 260,370
Half scale
Find third proportional to 484,756 and 1,041,480
Double scale
Find third proportional to 242,380 and 520,744
Similar ratio
Find third proportional to 363,567 and 781,110
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.