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Finding the Fourth Proportional to 668,071.40, 1,002,107.10 and 508,639.10

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Solution

The fourth proportional to 668,071.40, 1,002,107.10 and 508,639.10 is: 762,958.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,071.40 : 1,002,107.10 = 508,639.10 : x
  2. Step 2: Convert to fraction form
    668,071.40/1,002,107.10 = 508,639.10/x
  3. Step 3: Cross multiply
    668,071.40x = 1,002,107.10 × 508,639.10
  4. Step 4: Simplify right side
    668,071.40x = 509,710,853,447.61
  5. Step 5: Solve for x
    x = 509,710,853,447.61/668,071.40
  6. Step 6: Final answer
    x = 762,958.65

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