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Finding the Fourth Proportional to 492,938.40, 739,407.60 and 326,726.40

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Solution

The fourth proportional to 492,938.40, 739,407.60 and 326,726.40 is: 490,089.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,938.40 : 739,407.60 = 326,726.40 : x
  2. Step 2: Convert to fraction form
    492,938.40/739,407.60 = 326,726.40/x
  3. Step 3: Cross multiply
    492,938.40x = 739,407.60 × 326,726.40
  4. Step 4: Simplify right side
    492,938.40x = 241,583,983,280.64
  5. Step 5: Solve for x
    x = 241,583,983,280.64/492,938.40
  6. Step 6: Final answer
    x = 490,089.60

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