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Finding the Fourth Proportional to 636,076.62, 877,787.58 and 349,626.06

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Solution

The fourth proportional to 636,076.62, 877,787.58 and 349,626.06 is: 482,484.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,076.62 : 877,787.58 = 349,626.06 : x
  2. Step 2: Convert to fraction form
    636,076.62/877,787.58 = 349,626.06/x
  3. Step 3: Cross multiply
    636,076.62x = 877,787.58 × 349,626.06
  4. Step 4: Simplify right side
    636,076.62x = 306,897,413,112.34
  5. Step 5: Solve for x
    x = 306,897,413,112.34/636,076.62
  6. Step 6: Final answer
    x = 482,484.98

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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.