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Finding the Fourth Proportional to 615,415, 849,273.78 and 347,143

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Solution

The fourth proportional to 615,415, 849,273.78 and 347,143 is: 479,057.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,415 : 849,273.78 = 347,143 : x
  2. Step 2: Convert to fraction form
    615,415/849,273.78 = 347,143/x
  3. Step 3: Cross multiply
    615,415x = 849,273.78 × 347,143
  4. Step 4: Simplify right side
    615,415x = 294,819,447,810.54
  5. Step 5: Solve for x
    x = 294,819,447,810.54/615,415
  6. Step 6: Final answer
    x = 479,057.95

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