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Finding the Fourth Proportional to 522,199, 720,639.02 and 283,735

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Solution

The fourth proportional to 522,199, 720,639.02 and 283,735 is: 391,556.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,199 : 720,639.02 = 283,735 : x
  2. Step 2: Convert to fraction form
    522,199/720,639.02 = 283,735/x
  3. Step 3: Cross multiply
    522,199x = 720,639.02 × 283,735
  4. Step 4: Simplify right side
    522,199x = 204,470,512,339.70
  5. Step 5: Solve for x
    x = 204,470,512,339.70/522,199
  6. Step 6: Final answer
    x = 391,556.69

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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.