Home / 1,290,104.97-1,935,163.65-391,554.50

Finding the Fourth Proportional to 1,290,104.97, 1,935,163.65 and 391,554.50

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Solution

The fourth proportional to 1,290,104.97, 1,935,163.65 and 391,554.50 is: 587,333.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,104.97 : 1,935,163.65 = 391,554.50 : x
  2. Step 2: Convert to fraction form
    1,290,104.97/1,935,163.65 = 391,554.50/x
  3. Step 3: Cross multiply
    1,290,104.97x = 1,935,163.65 × 391,554.50
  4. Step 4: Simplify right side
    1,290,104.97x = 757,722,040,231.83
  5. Step 5: Solve for x
    x = 757,722,040,231.83/1,290,104.97
  6. Step 6: Final answer
    x = 587,333.63

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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.