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Finding the Fourth Proportional to 518,986.96, 716,080.32 and 315,032.96

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Solution

The fourth proportional to 518,986.96, 716,080.32 and 315,032.96 is: 434,671.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,986.96 : 716,080.32 = 315,032.96 : x
  2. Step 2: Convert to fraction form
    518,986.96/716,080.32 = 315,032.96/x
  3. Step 3: Cross multiply
    518,986.96x = 716,080.32 × 315,032.96
  4. Step 4: Simplify right side
    518,986.96x = 225,588,902,807.35
  5. Step 5: Solve for x
    x = 225,588,902,807.35/518,986.96
  6. Step 6: Final answer
    x = 434,671.62

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