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Finding the Fourth Proportional to 383,858.55, 575,787.83 and 271,665.45

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Solution

The fourth proportional to 383,858.55, 575,787.83 and 271,665.45 is: 407,498.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,858.55 : 575,787.83 = 271,665.45 : x
  2. Step 2: Convert to fraction form
    383,858.55/575,787.83 = 271,665.45/x
  3. Step 3: Cross multiply
    383,858.55x = 575,787.83 × 271,665.45
  4. Step 4: Simplify right side
    383,858.55x = 156,421,658,583.15
  5. Step 5: Solve for x
    x = 156,421,658,583.15/383,858.55
  6. Step 6: Final answer
    x = 407,498.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.