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Finding the Fourth Proportional to 478,762.70, 660,722.10 and 263,902.28

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Solution

The fourth proportional to 478,762.70, 660,722.10 and 263,902.28 is: 364,201.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,762.70 : 660,722.10 = 263,902.28 : x
  2. Step 2: Convert to fraction form
    478,762.70/660,722.10 = 263,902.28/x
  3. Step 3: Cross multiply
    478,762.70x = 660,722.10 × 263,902.28
  4. Step 4: Simplify right side
    478,762.70x = 174,366,068,636.39
  5. Step 5: Solve for x
    x = 174,366,068,636.39/478,762.70
  6. Step 6: Final answer
    x = 364,201.45

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