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Finding the Fourth Proportional to 401,760.81, 602,077.86 and 288,909.99

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Solution

The fourth proportional to 401,760.81, 602,077.86 and 288,909.99 is: 432,959.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,760.81 : 602,077.86 = 288,909.99 : x
  2. Step 2: Convert to fraction form
    401,760.81/602,077.86 = 288,909.99/x
  3. Step 3: Cross multiply
    401,760.81x = 602,077.86 × 288,909.99
  4. Step 4: Simplify right side
    401,760.81x = 173,946,308,511.82
  5. Step 5: Solve for x
    x = 173,946,308,511.82/401,760.81
  6. Step 6: Final answer
    x = 432,959.87

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