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Finding the Fourth Proportional to 888,886.99, 1,333,469 and 289,709.13

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Solution

The fourth proportional to 888,886.99, 1,333,469 and 289,709.13 is: 434,608.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,886.99 : 1,333,469 = 289,709.13 : x
  2. Step 2: Convert to fraction form
    888,886.99/1,333,469 = 289,709.13/x
  3. Step 3: Cross multiply
    888,886.99x = 1,333,469 × 289,709.13
  4. Step 4: Simplify right side
    888,886.99x = 386,318,143,871.97
  5. Step 5: Solve for x
    x = 386,318,143,871.97/888,886.99
  6. Step 6: Final answer
    x = 434,608.84

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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.