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Finding the Fourth Proportional to 379,285.66, 569,011.64 and 142,628.26

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Solution

The fourth proportional to 379,285.66, 569,011.64 and 142,628.26 is: 213,973.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,285.66 : 569,011.64 = 142,628.26 : x
  2. Step 2: Convert to fraction form
    379,285.66/569,011.64 = 142,628.26/x
  3. Step 3: Cross multiply
    379,285.66x = 569,011.64 × 142,628.26
  4. Step 4: Simplify right side
    379,285.66x = 81,157,140,132.95
  5. Step 5: Solve for x
    x = 81,157,140,132.95/379,285.66
  6. Step 6: Final answer
    x = 213,973.66

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