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Finding the Fourth Proportional to 636,211.73, 877,992.41 and 349,743.89

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Solution

The fourth proportional to 636,211.73, 877,992.41 and 349,743.89 is: 482,657.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,211.73 : 877,992.41 = 349,743.89 : x
  2. Step 2: Convert to fraction form
    636,211.73/877,992.41 = 349,743.89/x
  3. Step 3: Cross multiply
    636,211.73x = 877,992.41 × 349,743.89
  4. Step 4: Simplify right side
    636,211.73x = 307,072,479,115.16
  5. Step 5: Solve for x
    x = 307,072,479,115.16/636,211.73
  6. Step 6: Final answer
    x = 482,657.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.