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Finding the Fourth Proportional to 488,160.35, 729,271.81 and 315,979.35

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Solution

The fourth proportional to 488,160.35, 729,271.81 and 315,979.35 is: 472,047.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,160.35 : 729,271.81 = 315,979.35 : x
  2. Step 2: Convert to fraction form
    488,160.35/729,271.81 = 315,979.35/x
  3. Step 3: Cross multiply
    488,160.35x = 729,271.81 × 315,979.35
  4. Step 4: Simplify right side
    488,160.35x = 230,434,832,497.12
  5. Step 5: Solve for x
    x = 230,434,832,497.12/488,160.35
  6. Step 6: Final answer
    x = 472,047.42

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