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Finding the Fourth Proportional to 404,931.28, 607,399.08 and 265,572.40

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Solution

The fourth proportional to 404,931.28, 607,399.08 and 265,572.40 is: 398,360.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,931.28 : 607,399.08 = 265,572.40 : x
  2. Step 2: Convert to fraction form
    404,931.28/607,399.08 = 265,572.40/x
  3. Step 3: Cross multiply
    404,931.28x = 607,399.08 × 265,572.40
  4. Step 4: Simplify right side
    404,931.28x = 161,308,431,433.39
  5. Step 5: Solve for x
    x = 161,308,431,433.39/404,931.28
  6. Step 6: Final answer
    x = 398,360.02

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