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Finding the Fourth Proportional to 553,503.20, 828,505.20 and 396,039.20

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Solution

The fourth proportional to 553,503.20, 828,505.20 and 396,039.20 is: 592,806.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,503.20 : 828,505.20 = 396,039.20 : x
  2. Step 2: Convert to fraction form
    553,503.20/828,505.20 = 396,039.20/x
  3. Step 3: Cross multiply
    553,503.20x = 828,505.20 × 396,039.20
  4. Step 4: Simplify right side
    553,503.20x = 328,120,536,603.84
  5. Step 5: Solve for x
    x = 328,120,536,603.84/553,503.20
  6. Step 6: Final answer
    x = 592,806.94

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