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Finding the Fourth Proportional to 713,078.22, 984,058.83 and 390,785.70

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Solution

The fourth proportional to 713,078.22, 984,058.83 and 390,785.70 is: 539,290.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,078.22 : 984,058.83 = 390,785.70 : x
  2. Step 2: Convert to fraction form
    713,078.22/984,058.83 = 390,785.70/x
  3. Step 3: Cross multiply
    713,078.22x = 984,058.83 × 390,785.70
  4. Step 4: Simplify right side
    713,078.22x = 384,556,118,722.73
  5. Step 5: Solve for x
    x = 384,556,118,722.73/713,078.22
  6. Step 6: Final answer
    x = 539,290.23

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