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Finding the Fourth Proportional to 636,076.59, 877,787.61 and 349,626.03

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Solution

The fourth proportional to 636,076.59, 877,787.61 and 349,626.03 is: 482,484.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,076.59 : 877,787.61 = 349,626.03 : x
  2. Step 2: Convert to fraction form
    636,076.59/877,787.61 = 349,626.03/x
  3. Step 3: Cross multiply
    636,076.59x = 877,787.61 × 349,626.03
  4. Step 4: Simplify right side
    636,076.59x = 306,897,397,267.49
  5. Step 5: Solve for x
    x = 306,897,397,267.49/636,076.59
  6. Step 6: Final answer
    x = 482,484.97

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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.