Home / 775,353.85-1,161,843.72-521,694.79

Finding the Fourth Proportional to 775,353.85, 1,161,843.72 and 521,694.79

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Solution

The fourth proportional to 775,353.85, 1,161,843.72 and 521,694.79 is: 781,743.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,353.85 : 1,161,843.72 = 521,694.79 : x
  2. Step 2: Convert to fraction form
    775,353.85/1,161,843.72 = 521,694.79/x
  3. Step 3: Cross multiply
    775,353.85x = 1,161,843.72 × 521,694.79
  4. Step 4: Simplify right side
    775,353.85x = 606,127,815,518.22
  5. Step 5: Solve for x
    x = 606,127,815,518.22/775,353.85
  6. Step 6: Final answer
    x = 781,743.48

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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.