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Finding the Fourth Proportional to 480,840.04, 721,486.86 and 214,576.84

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Solution

The fourth proportional to 480,840.04, 721,486.86 and 214,576.84 is: 321,966.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,840.04 : 721,486.86 = 214,576.84 : x
  2. Step 2: Convert to fraction form
    480,840.04/721,486.86 = 214,576.84/x
  3. Step 3: Cross multiply
    480,840.04x = 721,486.86 × 214,576.84
  4. Step 4: Simplify right side
    480,840.04x = 154,814,370,520.32
  5. Step 5: Solve for x
    x = 154,814,370,520.32/480,840.04
  6. Step 6: Final answer
    x = 321,966.47

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