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Finding the Fourth Proportional to 608,845.01, 840,375 and 354,245.40

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Solution

The fourth proportional to 608,845.01, 840,375 and 354,245.40 is: 488,956.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,845.01 : 840,375 = 354,245.40 : x
  2. Step 2: Convert to fraction form
    608,845.01/840,375 = 354,245.40/x
  3. Step 3: Cross multiply
    608,845.01x = 840,375 × 354,245.40
  4. Step 4: Simplify right side
    608,845.01x = 297,698,978,025
  5. Step 5: Solve for x
    x = 297,698,978,025/608,845.01
  6. Step 6: Final answer
    x = 488,956.92

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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.