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Finding the Fourth Proportional to 636,151.73, 877,890.03 and 349,665.66

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Solution

The fourth proportional to 636,151.73, 877,890.03 and 349,665.66 is: 482,538.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,151.73 : 877,890.03 = 349,665.66 : x
  2. Step 2: Convert to fraction form
    636,151.73/877,890.03 = 349,665.66/x
  3. Step 3: Cross multiply
    636,151.73x = 877,890.03 × 349,665.66
  4. Step 4: Simplify right side
    636,151.73x = 306,967,996,747.37
  5. Step 5: Solve for x
    x = 306,967,996,747.37/636,151.73
  6. Step 6: Final answer
    x = 482,538.97

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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.