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Finding the Fourth Proportional to 464,027.60, 696,041.40 and 285,957.20

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Solution

The fourth proportional to 464,027.60, 696,041.40 and 285,957.20 is: 428,935.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,027.60 : 696,041.40 = 285,957.20 : x
  2. Step 2: Convert to fraction form
    464,027.60/696,041.40 = 285,957.20/x
  3. Step 3: Cross multiply
    464,027.60x = 696,041.40 × 285,957.20
  4. Step 4: Simplify right side
    464,027.60x = 199,038,049,828.08
  5. Step 5: Solve for x
    x = 199,038,049,828.08/464,027.60
  6. Step 6: Final answer
    x = 428,935.80

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