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Finding the Fourth Proportional to 527,144.80, 790,717.20 and 290,365.60

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Solution

The fourth proportional to 527,144.80, 790,717.20 and 290,365.60 is: 435,548.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,144.80 : 790,717.20 = 290,365.60 : x
  2. Step 2: Convert to fraction form
    527,144.80/790,717.20 = 290,365.60/x
  3. Step 3: Cross multiply
    527,144.80x = 790,717.20 × 290,365.60
  4. Step 4: Simplify right side
    527,144.80x = 229,597,074,208.32
  5. Step 5: Solve for x
    x = 229,597,074,208.32/527,144.80
  6. Step 6: Final answer
    x = 435,548.40

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