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Finding the Fourth Proportional to 481,743.60, 721,837.80 and 402,428.40

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Solution

The fourth proportional to 481,743.60, 721,837.80 and 402,428.40 is: 602,993.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,743.60 : 721,837.80 = 402,428.40 : x
  2. Step 2: Convert to fraction form
    481,743.60/721,837.80 = 402,428.40/x
  3. Step 3: Cross multiply
    481,743.60x = 721,837.80 × 402,428.40
  4. Step 4: Simplify right side
    481,743.60x = 290,488,030,913.52
  5. Step 5: Solve for x
    x = 290,488,030,913.52/481,743.60
  6. Step 6: Final answer
    x = 602,993.03

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