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Finding the Fourth Proportional to 775,392, 1,163,073.96 and 422,651.04

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Solution

The fourth proportional to 775,392, 1,163,073.96 and 422,651.04 is: 633,968.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,392 : 1,163,073.96 = 422,651.04 : x
  2. Step 2: Convert to fraction form
    775,392/1,163,073.96 = 422,651.04/x
  3. Step 3: Cross multiply
    775,392x = 1,163,073.96 × 422,651.04
  4. Step 4: Simplify right side
    775,392x = 491,574,418,790.92
  5. Step 5: Solve for x
    x = 491,574,418,790.92/775,392
  6. Step 6: Final answer
    x = 633,968.91

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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.