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Finding the Fourth Proportional to 640,016.60, 960,024.90 and 608,912.60

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Solution

The fourth proportional to 640,016.60, 960,024.90 and 608,912.60 is: 913,368.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,016.60 : 960,024.90 = 608,912.60 : x
  2. Step 2: Convert to fraction form
    640,016.60/960,024.90 = 608,912.60/x
  3. Step 3: Cross multiply
    640,016.60x = 960,024.90 × 608,912.60
  4. Step 4: Simplify right side
    640,016.60x = 584,571,257,923.74
  5. Step 5: Solve for x
    x = 584,571,257,923.74/640,016.60
  6. Step 6: Final answer
    x = 913,368.90

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