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Finding the Fourth Proportional to 450,016.72, 620,882.76 and 299,139.28

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Solution

The fourth proportional to 450,016.72, 620,882.76 and 299,139.28 is: 412,718.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,016.72 : 620,882.76 = 299,139.28 : x
  2. Step 2: Convert to fraction form
    450,016.72/620,882.76 = 299,139.28/x
  3. Step 3: Cross multiply
    450,016.72x = 620,882.76 × 299,139.28
  4. Step 4: Simplify right side
    450,016.72x = 185,730,421,790.81
  5. Step 5: Solve for x
    x = 185,730,421,790.81/450,016.72
  6. Step 6: Final answer
    x = 412,718.94

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