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Finding the Fourth Proportional to 521,306.82, 719,032.41 and 478,424.88

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Solution

The fourth proportional to 521,306.82, 719,032.41 and 478,424.88 is: 659,885.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,306.82 : 719,032.41 = 478,424.88 : x
  2. Step 2: Convert to fraction form
    521,306.82/719,032.41 = 478,424.88/x
  3. Step 3: Cross multiply
    521,306.82x = 719,032.41 × 478,424.88
  4. Step 4: Simplify right side
    521,306.82x = 344,002,994,470.36
  5. Step 5: Solve for x
    x = 344,002,994,470.36/521,306.82
  6. Step 6: Final answer
    x = 659,885.85

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