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Finding the Fourth Proportional to 432,913.20, 649,369.80 and 196,717.20

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Solution

The fourth proportional to 432,913.20, 649,369.80 and 196,717.20 is: 295,075.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,913.20 : 649,369.80 = 196,717.20 : x
  2. Step 2: Convert to fraction form
    432,913.20/649,369.80 = 196,717.20/x
  3. Step 3: Cross multiply
    432,913.20x = 649,369.80 × 196,717.20
  4. Step 4: Simplify right side
    432,913.20x = 127,742,208,820.56
  5. Step 5: Solve for x
    x = 127,742,208,820.56/432,913.20
  6. Step 6: Final answer
    x = 295,075.80

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