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Finding the Fourth Proportional to 380,303.08, 524,259.06 and 289,500.76

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Solution

The fourth proportional to 380,303.08, 524,259.06 and 289,500.76 is: 399,085.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,303.08 : 524,259.06 = 289,500.76 : x
  2. Step 2: Convert to fraction form
    380,303.08/524,259.06 = 289,500.76/x
  3. Step 3: Cross multiply
    380,303.08x = 524,259.06 × 289,500.76
  4. Step 4: Simplify right side
    380,303.08x = 151,773,396,306.89
  5. Step 5: Solve for x
    x = 151,773,396,306.89/380,303.08
  6. Step 6: Final answer
    x = 399,085.37

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