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Finding the Fourth Proportional to 390,097.08, 585,103.70 and 264,543.23

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Solution

The fourth proportional to 390,097.08, 585,103.70 and 264,543.23 is: 396,786.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,097.08 : 585,103.70 = 264,543.23 : x
  2. Step 2: Convert to fraction form
    390,097.08/585,103.70 = 264,543.23/x
  3. Step 3: Cross multiply
    390,097.08x = 585,103.70 × 264,543.23
  4. Step 4: Simplify right side
    390,097.08x = 154,785,224,807.07
  5. Step 5: Solve for x
    x = 154,785,224,807.07/390,097.08
  6. Step 6: Final answer
    x = 396,786.42

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