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Finding the Fourth Proportional to 888,809, 1,333,352.54 and 289,631.08

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Solution

The fourth proportional to 888,809, 1,333,352.54 and 289,631.08 is: 434,491.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,809 : 1,333,352.54 = 289,631.08 : x
  2. Step 2: Convert to fraction form
    888,809/1,333,352.54 = 289,631.08/x
  3. Step 3: Cross multiply
    888,809x = 1,333,352.54 × 289,631.08
  4. Step 4: Simplify right side
    888,809x = 386,180,336,180.94
  5. Step 5: Solve for x
    x = 386,180,336,180.94/888,809
  6. Step 6: Final answer
    x = 434,491.93

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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.