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Finding the Fourth Proportional to 353,066.40, 529,599.60 and 318,074.40

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Solution

The fourth proportional to 353,066.40, 529,599.60 and 318,074.40 is: 477,111.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,066.40 : 529,599.60 = 318,074.40 : x
  2. Step 2: Convert to fraction form
    353,066.40/529,599.60 = 318,074.40/x
  3. Step 3: Cross multiply
    353,066.40x = 529,599.60 × 318,074.40
  4. Step 4: Simplify right side
    353,066.40x = 168,452,075,010.24
  5. Step 5: Solve for x
    x = 168,452,075,010.24/353,066.40
  6. Step 6: Final answer
    x = 477,111.60

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