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Finding the Fourth Proportional to 529,099.62, 793,105.83 and 209,121.45

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Solution

The fourth proportional to 529,099.62, 793,105.83 and 209,121.45 is: 313,467.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,099.62 : 793,105.83 = 209,121.45 : x
  2. Step 2: Convert to fraction form
    529,099.62/793,105.83 = 209,121.45/x
  3. Step 3: Cross multiply
    529,099.62x = 793,105.83 × 209,121.45
  4. Step 4: Simplify right side
    529,099.62x = 165,855,441,173.05
  5. Step 5: Solve for x
    x = 165,855,441,173.05/529,099.62
  6. Step 6: Final answer
    x = 313,467.32

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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.