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Finding the Fourth Proportional to 806,574.08, 1,209,768.96 and 215,644.16

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Solution

The fourth proportional to 806,574.08, 1,209,768.96 and 215,644.16 is: 323,441.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,574.08 : 1,209,768.96 = 215,644.16 : x
  2. Step 2: Convert to fraction form
    806,574.08/1,209,768.96 = 215,644.16/x
  3. Step 3: Cross multiply
    806,574.08x = 1,209,768.96 × 215,644.16
  4. Step 4: Simplify right side
    806,574.08x = 260,879,611,173.27
  5. Step 5: Solve for x
    x = 260,879,611,173.27/806,574.08
  6. Step 6: Final answer
    x = 323,441.60

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