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Finding the Fourth Proportional to 457,490.18, 686,423.46 and 201,190.84

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Solution

The fourth proportional to 457,490.18, 686,423.46 and 201,190.84 is: 301,869.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,490.18 : 686,423.46 = 201,190.84 : x
  2. Step 2: Convert to fraction form
    457,490.18/686,423.46 = 201,190.84/x
  3. Step 3: Cross multiply
    457,490.18x = 686,423.46 × 201,190.84
  4. Step 4: Simplify right side
    457,490.18x = 138,102,111,551.51
  5. Step 5: Solve for x
    x = 138,102,111,551.51/457,490.18
  6. Step 6: Final answer
    x = 301,869.02

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