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Finding the Fourth Proportional to 888,706.54, 1,333,198.05 and 289,528.21

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Solution

The fourth proportional to 888,706.54, 1,333,198.05 and 289,528.21 is: 434,337.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,706.54 : 1,333,198.05 = 289,528.21 : x
  2. Step 2: Convert to fraction form
    888,706.54/1,333,198.05 = 289,528.21/x
  3. Step 3: Cross multiply
    888,706.54x = 1,333,198.05 × 289,528.21
  4. Step 4: Simplify right side
    888,706.54x = 385,998,444,991.99
  5. Step 5: Solve for x
    x = 385,998,444,991.99/888,706.54
  6. Step 6: Final answer
    x = 434,337.35

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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.