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Finding the Fourth Proportional to 402,986.34, 604,457.64 and 122,481.72

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Solution

The fourth proportional to 402,986.34, 604,457.64 and 122,481.72 is: 183,715.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,986.34 : 604,457.64 = 122,481.72 : x
  2. Step 2: Convert to fraction form
    402,986.34/604,457.64 = 122,481.72/x
  3. Step 3: Cross multiply
    402,986.34x = 604,457.64 × 122,481.72
  4. Step 4: Simplify right side
    402,986.34x = 74,035,010,801.93
  5. Step 5: Solve for x
    x = 74,035,010,801.93/402,986.34
  6. Step 6: Final answer
    x = 183,715.93

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