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Finding the Fourth Proportional to 583,727.85, 805,421.61 and 354,405.65

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Solution

The fourth proportional to 583,727.85, 805,421.61 and 354,405.65 is: 489,005.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,727.85 : 805,421.61 = 354,405.65 : x
  2. Step 2: Convert to fraction form
    583,727.85/805,421.61 = 354,405.65/x
  3. Step 3: Cross multiply
    583,727.85x = 805,421.61 × 354,405.65
  4. Step 4: Simplify right side
    583,727.85x = 285,445,965,188.99
  5. Step 5: Solve for x
    x = 285,445,965,188.99/583,727.85
  6. Step 6: Final answer
    x = 489,005.22

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