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Finding the Fourth Proportional to 483,212.20, 724,818.30 and 404,415.40

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Solution

The fourth proportional to 483,212.20, 724,818.30 and 404,415.40 is: 606,623.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,212.20 : 724,818.30 = 404,415.40 : x
  2. Step 2: Convert to fraction form
    483,212.20/724,818.30 = 404,415.40/x
  3. Step 3: Cross multiply
    483,212.20x = 724,818.30 × 404,415.40
  4. Step 4: Simplify right side
    483,212.20x = 293,127,682,721.82
  5. Step 5: Solve for x
    x = 293,127,682,721.82/483,212.20
  6. Step 6: Final answer
    x = 606,623.10

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