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Finding the Fourth Proportional to 578,692.40, 868,038.60 and 199,612.40

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Solution

The fourth proportional to 578,692.40, 868,038.60 and 199,612.40 is: 299,418.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,692.40 : 868,038.60 = 199,612.40 : x
  2. Step 2: Convert to fraction form
    578,692.40/868,038.60 = 199,612.40/x
  3. Step 3: Cross multiply
    578,692.40x = 868,038.60 × 199,612.40
  4. Step 4: Simplify right side
    578,692.40x = 173,271,268,238.64
  5. Step 5: Solve for x
    x = 173,271,268,238.64/578,692.40
  6. Step 6: Final answer
    x = 299,418.60

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