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Finding the Fourth Proportional to 888,562.80, 1,332,455.40 and 355,906.80

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Solution

The fourth proportional to 888,562.80, 1,332,455.40 and 355,906.80 is: 533,704.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,562.80 : 1,332,455.40 = 355,906.80 : x
  2. Step 2: Convert to fraction form
    888,562.80/1,332,455.40 = 355,906.80/x
  3. Step 3: Cross multiply
    888,562.80x = 1,332,455.40 × 355,906.80
  4. Step 4: Simplify right side
    888,562.80x = 474,229,937,556.72
  5. Step 5: Solve for x
    x = 474,229,937,556.72/888,562.80
  6. Step 6: Final answer
    x = 533,704.47

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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.