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Finding the Fourth Proportional to 800,872.25, 1,105,188.93 and 438,288.83

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Solution

The fourth proportional to 800,872.25, 1,105,188.93 and 438,288.83 is: 604,830.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,872.25 : 1,105,188.93 = 438,288.83 : x
  2. Step 2: Convert to fraction form
    800,872.25/1,105,188.93 = 438,288.83/x
  3. Step 3: Cross multiply
    800,872.25x = 1,105,188.93 × 438,288.83
  4. Step 4: Simplify right side
    800,872.25x = 484,391,963,058.65
  5. Step 5: Solve for x
    x = 484,391,963,058.65/800,872.25
  6. Step 6: Final answer
    x = 604,830.50

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