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Finding the Fourth Proportional to 659,258.40, 988,887.60 and 238,435.86

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Solution

The fourth proportional to 659,258.40, 988,887.60 and 238,435.86 is: 357,653.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,258.40 : 988,887.60 = 238,435.86 : x
  2. Step 2: Convert to fraction form
    659,258.40/988,887.60 = 238,435.86/x
  3. Step 3: Cross multiply
    659,258.40x = 988,887.60 × 238,435.86
  4. Step 4: Simplify right side
    659,258.40x = 235,786,265,349.34
  5. Step 5: Solve for x
    x = 235,786,265,349.34/659,258.40
  6. Step 6: Final answer
    x = 357,653.79

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