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Finding the Fourth Proportional to 636,013.91, 877,699.85 and 349,527.84

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Solution

The fourth proportional to 636,013.91, 877,699.85 and 349,527.84 is: 482,348.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,013.91 : 877,699.85 = 349,527.84 : x
  2. Step 2: Convert to fraction form
    636,013.91/877,699.85 = 349,527.84/x
  3. Step 3: Cross multiply
    636,013.91x = 877,699.85 × 349,527.84
  4. Step 4: Simplify right side
    636,013.91x = 306,780,530,991.19
  5. Step 5: Solve for x
    x = 306,780,530,991.19/636,013.91
  6. Step 6: Final answer
    x = 482,348.78

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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.