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Finding the Fourth Proportional to 561,031.80, 774,230.04 and 306,390.48

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Solution

The fourth proportional to 561,031.80, 774,230.04 and 306,390.48 is: 422,822.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,031.80 : 774,230.04 = 306,390.48 : x
  2. Step 2: Convert to fraction form
    561,031.80/774,230.04 = 306,390.48/x
  3. Step 3: Cross multiply
    561,031.80x = 774,230.04 × 306,390.48
  4. Step 4: Simplify right side
    561,031.80x = 237,216,713,586.02
  5. Step 5: Solve for x
    x = 237,216,713,586.02/561,031.80
  6. Step 6: Final answer
    x = 422,822.22

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