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Finding the Fourth Proportional to 477,240, 715,864.32 and 144,816

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Solution

The fourth proportional to 477,240, 715,864.32 and 144,816 is: 217,225.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,240 : 715,864.32 = 144,816 : x
  2. Step 2: Convert to fraction form
    477,240/715,864.32 = 144,816/x
  3. Step 3: Cross multiply
    477,240x = 715,864.32 × 144,816
  4. Step 4: Simplify right side
    477,240x = 103,668,607,365.12
  5. Step 5: Solve for x
    x = 103,668,607,365.12/477,240
  6. Step 6: Final answer
    x = 217,225.31

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