Home / 1,270,989.81-1,906,483.12-324,360.56

Finding the Fourth Proportional to 1,270,989.81, 1,906,483.12 and 324,360.56

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Solution

The fourth proportional to 1,270,989.81, 1,906,483.12 and 324,360.56 is: 486,540.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,989.81 : 1,906,483.12 = 324,360.56 : x
  2. Step 2: Convert to fraction form
    1,270,989.81/1,906,483.12 = 324,360.56/x
  3. Step 3: Cross multiply
    1,270,989.81x = 1,906,483.12 × 324,360.56
  4. Step 4: Simplify right side
    1,270,989.81x = 618,387,932,433.75
  5. Step 5: Solve for x
    x = 618,387,932,433.75/1,270,989.81
  6. Step 6: Final answer
    x = 486,540.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.