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Finding the Fourth Proportional to 448,216.40, 672,324.60 and 346,739.60

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Solution

The fourth proportional to 448,216.40, 672,324.60 and 346,739.60 is: 520,109.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,216.40 : 672,324.60 = 346,739.60 : x
  2. Step 2: Convert to fraction form
    448,216.40/672,324.60 = 346,739.60/x
  3. Step 3: Cross multiply
    448,216.40x = 672,324.60 × 346,739.60
  4. Step 4: Simplify right side
    448,216.40x = 233,121,562,874.16
  5. Step 5: Solve for x
    x = 233,121,562,874.16/448,216.40
  6. Step 6: Final answer
    x = 520,109.40

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