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Finding the Fourth Proportional to 385,760.07, 578,429.18 and 306,308.41

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Solution

The fourth proportional to 385,760.07, 578,429.18 and 306,308.41 is: 459,295.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,760.07 : 578,429.18 = 306,308.41 : x
  2. Step 2: Convert to fraction form
    385,760.07/578,429.18 = 306,308.41/x
  3. Step 3: Cross multiply
    385,760.07x = 578,429.18 × 306,308.41
  4. Step 4: Simplify right side
    385,760.07x = 177,177,720,594.45
  5. Step 5: Solve for x
    x = 177,177,720,594.45/385,760.07
  6. Step 6: Final answer
    x = 459,295.13

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