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Finding the Fourth Proportional to 440,876.60, 607,830.18 and 318,265.64

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Solution

The fourth proportional to 440,876.60, 607,830.18 and 318,265.64 is: 438,788.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,876.60 : 607,830.18 = 318,265.64 : x
  2. Step 2: Convert to fraction form
    440,876.60/607,830.18 = 318,265.64/x
  3. Step 3: Cross multiply
    440,876.60x = 607,830.18 × 318,265.64
  4. Step 4: Simplify right side
    440,876.60x = 193,451,461,249.02
  5. Step 5: Solve for x
    x = 193,451,461,249.02/440,876.60
  6. Step 6: Final answer
    x = 438,788.23

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