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Finding the Fourth Proportional to 518,804.79, 715,944.20 and 292,450.29

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Solution

The fourth proportional to 518,804.79, 715,944.20 and 292,450.29 is: 403,577.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,804.79 : 715,944.20 = 292,450.29 : x
  2. Step 2: Convert to fraction form
    518,804.79/715,944.20 = 292,450.29/x
  3. Step 3: Cross multiply
    518,804.79x = 715,944.20 × 292,450.29
  4. Step 4: Simplify right side
    518,804.79x = 209,378,087,451.57
  5. Step 5: Solve for x
    x = 209,378,087,451.57/518,804.79
  6. Step 6: Final answer
    x = 403,577.78

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