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Finding the Fourth Proportional to 456,596.40, 684,894.60 and 207,278.40

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Solution

The fourth proportional to 456,596.40, 684,894.60 and 207,278.40 is: 310,917.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,596.40 : 684,894.60 = 207,278.40 : x
  2. Step 2: Convert to fraction form
    456,596.40/684,894.60 = 207,278.40/x
  3. Step 3: Cross multiply
    456,596.40x = 684,894.60 × 207,278.40
  4. Step 4: Simplify right side
    456,596.40x = 141,963,856,856.64
  5. Step 5: Solve for x
    x = 141,963,856,856.64/456,596.40
  6. Step 6: Final answer
    x = 310,917.60

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