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Finding the Fourth Proportional to 636,201.86, 877,936.29 and 349,719.89

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Solution

The fourth proportional to 636,201.86, 877,936.29 and 349,719.89 is: 482,601.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,201.86 : 877,936.29 = 349,719.89 : x
  2. Step 2: Convert to fraction form
    636,201.86/877,936.29 = 349,719.89/x
  3. Step 3: Cross multiply
    636,201.86x = 877,936.29 × 349,719.89
  4. Step 4: Simplify right side
    636,201.86x = 307,031,784,960.65
  5. Step 5: Solve for x
    x = 307,031,784,960.65/636,201.86
  6. Step 6: Final answer
    x = 482,601.20

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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.