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Finding the Fourth Proportional to 342,450.52, 512,979.46 and 279,495

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Solution

The fourth proportional to 342,450.52, 512,979.46 and 279,495 is: 418,674.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,450.52 : 512,979.46 = 279,495 : x
  2. Step 2: Convert to fraction form
    342,450.52/512,979.46 = 279,495/x
  3. Step 3: Cross multiply
    342,450.52x = 512,979.46 × 279,495
  4. Step 4: Simplify right side
    342,450.52x = 143,375,194,172.70
  5. Step 5: Solve for x
    x = 143,375,194,172.70/342,450.52
  6. Step 6: Final answer
    x = 418,674.19

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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.