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Finding the Fourth Proportional to 399,111.32, 598,971.54 and 146,631.08

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Solution

The fourth proportional to 399,111.32, 598,971.54 and 146,631.08 is: 220,058.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,111.32 : 598,971.54 = 146,631.08 : x
  2. Step 2: Convert to fraction form
    399,111.32/598,971.54 = 146,631.08/x
  3. Step 3: Cross multiply
    399,111.32x = 598,971.54 × 146,631.08
  4. Step 4: Simplify right side
    399,111.32x = 87,827,843,799.46
  5. Step 5: Solve for x
    x = 87,827,843,799.46/399,111.32
  6. Step 6: Final answer
    x = 220,058.51

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