Home / 1,021,131.48-1,531,704.82-381,579.78

Finding the Fourth Proportional to 1,021,131.48, 1,531,704.82 and 381,579.78

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Solution

The fourth proportional to 1,021,131.48, 1,531,704.82 and 381,579.78 is: 572,372.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,131.48 : 1,531,704.82 = 381,579.78 : x
  2. Step 2: Convert to fraction form
    1,021,131.48/1,531,704.82 = 381,579.78/x
  3. Step 3: Cross multiply
    1,021,131.48x = 1,531,704.82 × 381,579.78
  4. Step 4: Simplify right side
    1,021,131.48x = 584,467,588,240.54
  5. Step 5: Solve for x
    x = 584,467,588,240.54/1,021,131.48
  6. Step 6: Final answer
    x = 572,372.51

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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.