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Finding the Fourth Proportional to 421,531.59, 581,447.66 and 294,160.71

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Solution

The fourth proportional to 421,531.59, 581,447.66 and 294,160.71 is: 405,756.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,531.59 : 581,447.66 = 294,160.71 : x
  2. Step 2: Convert to fraction form
    421,531.59/581,447.66 = 294,160.71/x
  3. Step 3: Cross multiply
    421,531.59x = 581,447.66 × 294,160.71
  4. Step 4: Simplify right side
    421,531.59x = 171,039,055,022.64
  5. Step 5: Solve for x
    x = 171,039,055,022.64/421,531.59
  6. Step 6: Final answer
    x = 405,756.20

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