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Finding the Fourth Proportional to 547,345.20, 755,412.12 and 305,643.42

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Solution

The fourth proportional to 547,345.20, 755,412.12 and 305,643.42 is: 421,830.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,345.20 : 755,412.12 = 305,643.42 : x
  2. Step 2: Convert to fraction form
    547,345.20/755,412.12 = 305,643.42/x
  3. Step 3: Cross multiply
    547,345.20x = 755,412.12 × 305,643.42
  4. Step 4: Simplify right side
    547,345.20x = 230,886,743,866.25
  5. Step 5: Solve for x
    x = 230,886,743,866.25/547,345.20
  6. Step 6: Final answer
    x = 421,830.22

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