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Finding the Fourth Proportional to 507,635.89, 761,455.64 and 128,556.52

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Solution

The fourth proportional to 507,635.89, 761,455.64 and 128,556.52 is: 192,835.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,635.89 : 761,455.64 = 128,556.52 : x
  2. Step 2: Convert to fraction form
    507,635.89/761,455.64 = 128,556.52/x
  3. Step 3: Cross multiply
    507,635.89x = 761,455.64 × 128,556.52
  4. Step 4: Simplify right side
    507,635.89x = 97,890,087,212.77
  5. Step 5: Solve for x
    x = 97,890,087,212.77/507,635.89
  6. Step 6: Final answer
    x = 192,835.24

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