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Finding the Fourth Proportional to 636,033.60, 954,141.12 and 215,429.76

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Solution

The fourth proportional to 636,033.60, 954,141.12 and 215,429.76 is: 323,175.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,033.60 : 954,141.12 = 215,429.76 : x
  2. Step 2: Convert to fraction form
    636,033.60/954,141.12 = 215,429.76/x
  3. Step 3: Cross multiply
    636,033.60x = 954,141.12 × 215,429.76
  4. Step 4: Simplify right side
    636,033.60x = 205,550,392,487.73
  5. Step 5: Solve for x
    x = 205,550,392,487.73/636,033.60
  6. Step 6: Final answer
    x = 323,175.37

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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.