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Finding the Fourth Proportional to 522,630.90, 784,205.55 and 298,163.70

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Solution

The fourth proportional to 522,630.90, 784,205.55 and 298,163.70 is: 447,393.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,630.90 : 784,205.55 = 298,163.70 : x
  2. Step 2: Convert to fraction form
    522,630.90/784,205.55 = 298,163.70/x
  3. Step 3: Cross multiply
    522,630.90x = 784,205.55 × 298,163.70
  4. Step 4: Simplify right side
    522,630.90x = 233,821,628,348.54
  5. Step 5: Solve for x
    x = 233,821,628,348.54/522,630.90
  6. Step 6: Final answer
    x = 447,393.42

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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.