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Finding the Fourth Proportional to 383,594.08, 574,383.12 and 308,314.72

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Solution

The fourth proportional to 383,594.08, 574,383.12 and 308,314.72 is: 461,661.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,594.08 : 574,383.12 = 308,314.72 : x
  2. Step 2: Convert to fraction form
    383,594.08/574,383.12 = 308,314.72/x
  3. Step 3: Cross multiply
    383,594.08x = 574,383.12 × 308,314.72
  4. Step 4: Simplify right side
    383,594.08x = 177,090,770,815.53
  5. Step 5: Solve for x
    x = 177,090,770,815.53/383,594.08
  6. Step 6: Final answer
    x = 461,661.90

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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.