Home / 1,021,129.48-1,531,701.82-381,577.78

Finding the Fourth Proportional to 1,021,129.48, 1,531,701.82 and 381,577.78

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Solution

The fourth proportional to 1,021,129.48, 1,531,701.82 and 381,577.78 is: 572,369.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,129.48 : 1,531,701.82 = 381,577.78 : x
  2. Step 2: Convert to fraction form
    1,021,129.48/1,531,701.82 = 381,577.78/x
  3. Step 3: Cross multiply
    1,021,129.48x = 1,531,701.82 × 381,577.78
  4. Step 4: Simplify right side
    1,021,129.48x = 584,463,380,097.56
  5. Step 5: Solve for x
    x = 584,463,380,097.56/1,021,129.48
  6. Step 6: Final answer
    x = 572,369.51

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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.