Home / 1,270,987.86-1,906,480.70-324,358.68

Finding the Fourth Proportional to 1,270,987.86, 1,906,480.70 and 324,358.68

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Solution

The fourth proportional to 1,270,987.86, 1,906,480.70 and 324,358.68 is: 486,537.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,987.86 : 1,906,480.70 = 324,358.68 : x
  2. Step 2: Convert to fraction form
    1,270,987.86/1,906,480.70 = 324,358.68/x
  3. Step 3: Cross multiply
    1,270,987.86x = 1,906,480.70 × 324,358.68
  4. Step 4: Simplify right side
    1,270,987.86x = 618,383,563,297.48
  5. Step 5: Solve for x
    x = 618,383,563,297.48/1,270,987.86
  6. Step 6: Final answer
    x = 486,537.74

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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.