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Finding the Fourth Proportional to 1,203,978.24, 1,661,426.46 and 687,630.62

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Solution

The fourth proportional to 1,203,978.24, 1,661,426.46 and 687,630.62 is: 948,893.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,203,978.24 : 1,661,426.46 = 687,630.62 : x
  2. Step 2: Convert to fraction form
    1,203,978.24/1,661,426.46 = 687,630.62/x
  3. Step 3: Cross multiply
    1,203,978.24x = 1,661,426.46 × 687,630.62
  4. Step 4: Simplify right side
    1,203,978.24x = 1,142,447,706,774.21
  5. Step 5: Solve for x
    x = 1,142,447,706,774.21/1,203,978.24
  6. Step 6: Final answer
    x = 948,893.98

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