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Finding the Fourth Proportional to 354,271.24, 489,030.78 and 259,530.40

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Solution

The fourth proportional to 354,271.24, 489,030.78 and 259,530.40 is: 358,251.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,271.24 : 489,030.78 = 259,530.40 : x
  2. Step 2: Convert to fraction form
    354,271.24/489,030.78 = 259,530.40/x
  3. Step 3: Cross multiply
    354,271.24x = 489,030.78 × 259,530.40
  4. Step 4: Simplify right side
    354,271.24x = 126,918,353,945.71
  5. Step 5: Solve for x
    x = 126,918,353,945.71/354,271.24
  6. Step 6: Final answer
    x = 358,251.93

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