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Finding the Fourth Proportional to 470,128.88, 648,617.64 and 300,460.88

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Solution

The fourth proportional to 470,128.88, 648,617.64 and 300,460.88 is: 414,533.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,128.88 : 648,617.64 = 300,460.88 : x
  2. Step 2: Convert to fraction form
    470,128.88/648,617.64 = 300,460.88/x
  3. Step 3: Cross multiply
    470,128.88x = 648,617.64 × 300,460.88
  4. Step 4: Simplify right side
    470,128.88x = 194,884,226,897.92
  5. Step 5: Solve for x
    x = 194,884,226,897.92/470,128.88
  6. Step 6: Final answer
    x = 414,533.62

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