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Finding the Fourth Proportional to 438,565.94, 605,226.05 and 257,280.96

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Solution

The fourth proportional to 438,565.94, 605,226.05 and 257,280.96 is: 355,050.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,565.94 : 605,226.05 = 257,280.96 : x
  2. Step 2: Convert to fraction form
    438,565.94/605,226.05 = 257,280.96/x
  3. Step 3: Cross multiply
    438,565.94x = 605,226.05 × 257,280.96
  4. Step 4: Simplify right side
    438,565.94x = 155,713,138,428.21
  5. Step 5: Solve for x
    x = 155,713,138,428.21/438,565.94
  6. Step 6: Final answer
    x = 355,050.68

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