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Finding the Fourth Proportional to 966,163.28, 1,449,429 and 389,832.28

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Solution

The fourth proportional to 966,163.28, 1,449,429 and 389,832.28 is: 584,822.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    966,163.28 : 1,449,429 = 389,832.28 : x
  2. Step 2: Convert to fraction form
    966,163.28/1,449,429 = 389,832.28/x
  3. Step 3: Cross multiply
    966,163.28x = 1,449,429 × 389,832.28
  4. Step 4: Simplify right side
    966,163.28x = 565,034,211,768.12
  5. Step 5: Solve for x
    x = 565,034,211,768.12/966,163.28
  6. Step 6: Final answer
    x = 584,822.69

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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.