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Finding the Fourth Proportional to 442,921.80, 664,674.30 and 253,381.80

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Solution

The fourth proportional to 442,921.80, 664,674.30 and 253,381.80 is: 380,239.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,921.80 : 664,674.30 = 253,381.80 : x
  2. Step 2: Convert to fraction form
    442,921.80/664,674.30 = 253,381.80/x
  3. Step 3: Cross multiply
    442,921.80x = 664,674.30 × 253,381.80
  4. Step 4: Simplify right side
    442,921.80x = 168,416,370,547.74
  5. Step 5: Solve for x
    x = 168,416,370,547.74/442,921.80
  6. Step 6: Final answer
    x = 380,239.52

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