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Finding the Fourth Proportional to 704,388.29, 972,055.76 and 398,458.10

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Solution

The fourth proportional to 704,388.29, 972,055.76 and 398,458.10 is: 549,872.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,388.29 : 972,055.76 = 398,458.10 : x
  2. Step 2: Convert to fraction form
    704,388.29/972,055.76 = 398,458.10/x
  3. Step 3: Cross multiply
    704,388.29x = 972,055.76 × 398,458.10
  4. Step 4: Simplify right side
    704,388.29x = 387,323,491,661.51
  5. Step 5: Solve for x
    x = 387,323,491,661.51/704,388.29
  6. Step 6: Final answer
    x = 549,872.14

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