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Finding the Fourth Proportional to 464,686.08, 641,628 and 357,086.40

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Solution

The fourth proportional to 464,686.08, 641,628 and 357,086.40 is: 493,056.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,686.08 : 641,628 = 357,086.40 : x
  2. Step 2: Convert to fraction form
    464,686.08/641,628 = 357,086.40/x
  3. Step 3: Cross multiply
    464,686.08x = 641,628 × 357,086.40
  4. Step 4: Simplify right side
    464,686.08x = 229,116,632,659.20
  5. Step 5: Solve for x
    x = 229,116,632,659.20/464,686.08
  6. Step 6: Final answer
    x = 493,056.80

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