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Finding the Fourth Proportional to 470,642.81, 649,492.09 and 255,782.88

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Solution

The fourth proportional to 470,642.81, 649,492.09 and 255,782.88 is: 352,983.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,642.81 : 649,492.09 = 255,782.88 : x
  2. Step 2: Convert to fraction form
    470,642.81/649,492.09 = 255,782.88/x
  3. Step 3: Cross multiply
    470,642.81x = 649,492.09 × 255,782.88
  4. Step 4: Simplify right side
    470,642.81x = 166,128,956,677.96
  5. Step 5: Solve for x
    x = 166,128,956,677.96/470,642.81
  6. Step 6: Final answer
    x = 352,983.10

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