Home / 775,354.85-1,161,845.22-521,695.79

Finding the Fourth Proportional to 775,354.85, 1,161,845.22 and 521,695.79

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Solution

The fourth proportional to 775,354.85, 1,161,845.22 and 521,695.79 is: 781,744.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,354.85 : 1,161,845.22 = 521,695.79 : x
  2. Step 2: Convert to fraction form
    775,354.85/1,161,845.22 = 521,695.79/x
  3. Step 3: Cross multiply
    775,354.85x = 1,161,845.22 × 521,695.79
  4. Step 4: Simplify right side
    775,354.85x = 606,129,759,905.62
  5. Step 5: Solve for x
    x = 606,129,759,905.62/775,354.85
  6. Step 6: Final answer
    x = 781,744.98

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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.