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Finding the Fourth Proportional to 570,491.76, 787,278.62 and 315,859.34

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Solution

The fourth proportional to 570,491.76, 787,278.62 and 315,859.34 is: 435,885.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,491.76 : 787,278.62 = 315,859.34 : x
  2. Step 2: Convert to fraction form
    570,491.76/787,278.62 = 315,859.34/x
  3. Step 3: Cross multiply
    570,491.76x = 787,278.62 × 315,859.34
  4. Step 4: Simplify right side
    570,491.76x = 248,669,305,309.31
  5. Step 5: Solve for x
    x = 248,669,305,309.31/570,491.76
  6. Step 6: Final answer
    x = 435,885.88

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