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Finding the Fourth Proportional to 528,010.64, 791,831.64 and 212,385.68

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Solution

The fourth proportional to 528,010.64, 791,831.64 and 212,385.68 is: 318,504.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,010.64 : 791,831.64 = 212,385.68 : x
  2. Step 2: Convert to fraction form
    528,010.64/791,831.64 = 212,385.68/x
  3. Step 3: Cross multiply
    528,010.64x = 791,831.64 × 212,385.68
  4. Step 4: Simplify right side
    528,010.64x = 168,173,701,306.92
  5. Step 5: Solve for x
    x = 168,173,701,306.92/528,010.64
  6. Step 6: Final answer
    x = 318,504.38

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