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Finding the Fourth Proportional to 524,642.40, 786,963.60 and 419,666.40

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Solution

The fourth proportional to 524,642.40, 786,963.60 and 419,666.40 is: 629,499.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,642.40 : 786,963.60 = 419,666.40 : x
  2. Step 2: Convert to fraction form
    524,642.40/786,963.60 = 419,666.40/x
  3. Step 3: Cross multiply
    524,642.40x = 786,963.60 × 419,666.40
  4. Step 4: Simplify right side
    524,642.40x = 330,262,180,943.04
  5. Step 5: Solve for x
    x = 330,262,180,943.04/524,642.40
  6. Step 6: Final answer
    x = 629,499.60

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