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Finding the Fourth Proportional to 668,877.70, 1,003,316.56 and 313,927.60

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Solution

The fourth proportional to 668,877.70, 1,003,316.56 and 313,927.60 is: 470,891.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,877.70 : 1,003,316.56 = 313,927.60 : x
  2. Step 2: Convert to fraction form
    668,877.70/1,003,316.56 = 313,927.60/x
  3. Step 3: Cross multiply
    668,877.70x = 1,003,316.56 × 313,927.60
  4. Step 4: Simplify right side
    668,877.70x = 314,968,759,721.06
  5. Step 5: Solve for x
    x = 314,968,759,721.06/668,877.70
  6. Step 6: Final answer
    x = 470,891.40

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