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Finding the Fourth Proportional to 664,646.40, 996,969.60 and 383,835.60

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Solution

The fourth proportional to 664,646.40, 996,969.60 and 383,835.60 is: 575,753.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,646.40 : 996,969.60 = 383,835.60 : x
  2. Step 2: Convert to fraction form
    664,646.40/996,969.60 = 383,835.60/x
  3. Step 3: Cross multiply
    664,646.40x = 996,969.60 × 383,835.60
  4. Step 4: Simplify right side
    664,646.40x = 382,672,424,597.76
  5. Step 5: Solve for x
    x = 382,672,424,597.76/664,646.40
  6. Step 6: Final answer
    x = 575,753.40

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