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Finding the Fourth Proportional to 346,439, 478,087.44 and 187,463

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Solution

The fourth proportional to 346,439, 478,087.44 and 187,463 is: 258,699.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,439 : 478,087.44 = 187,463 : x
  2. Step 2: Convert to fraction form
    346,439/478,087.44 = 187,463/x
  3. Step 3: Cross multiply
    346,439x = 478,087.44 × 187,463
  4. Step 4: Simplify right side
    346,439x = 89,623,705,764.72
  5. Step 5: Solve for x
    x = 89,623,705,764.72/346,439
  6. Step 6: Final answer
    x = 258,699.82

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