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Finding the Fourth Proportional to 556,854.20, 835,281.30 and 320,924.60

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Solution

The fourth proportional to 556,854.20, 835,281.30 and 320,924.60 is: 481,386.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,854.20 : 835,281.30 = 320,924.60 : x
  2. Step 2: Convert to fraction form
    556,854.20/835,281.30 = 320,924.60/x
  3. Step 3: Cross multiply
    556,854.20x = 835,281.30 × 320,924.60
  4. Step 4: Simplify right side
    556,854.20x = 268,062,317,089.98
  5. Step 5: Solve for x
    x = 268,062,317,089.98/556,854.20
  6. Step 6: Final answer
    x = 481,386.90

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