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Finding the Fourth Proportional to 666,288.18, 919,474.94 and 360,364.91

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Solution

The fourth proportional to 666,288.18, 919,474.94 and 360,364.91 is: 497,302.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,288.18 : 919,474.94 = 360,364.91 : x
  2. Step 2: Convert to fraction form
    666,288.18/919,474.94 = 360,364.91/x
  3. Step 3: Cross multiply
    666,288.18x = 919,474.94 × 360,364.91
  4. Step 4: Simplify right side
    666,288.18x = 331,346,500,303.89
  5. Step 5: Solve for x
    x = 331,346,500,303.89/666,288.18
  6. Step 6: Final answer
    x = 497,302.08

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