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Finding the Fourth Proportional to 562,617.28, 776,420.40 and 307,992.16

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Solution

The fourth proportional to 562,617.28, 776,420.40 and 307,992.16 is: 425,033.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,617.28 : 776,420.40 = 307,992.16 : x
  2. Step 2: Convert to fraction form
    562,617.28/776,420.40 = 307,992.16/x
  3. Step 3: Cross multiply
    562,617.28x = 776,420.40 × 307,992.16
  4. Step 4: Simplify right side
    562,617.28x = 239,131,396,064.06
  5. Step 5: Solve for x
    x = 239,131,396,064.06/562,617.28
  6. Step 6: Final answer
    x = 425,033.86

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