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Finding the Fourth Proportional to 660,027.67, 990,457.99 and 280,947.81

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Solution

The fourth proportional to 660,027.67, 990,457.99 and 280,947.81 is: 421,599.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,027.67 : 990,457.99 = 280,947.81 : x
  2. Step 2: Convert to fraction form
    660,027.67/990,457.99 = 280,947.81/x
  3. Step 3: Cross multiply
    660,027.67x = 990,457.99 × 280,947.81
  4. Step 4: Simplify right side
    660,027.67x = 278,267,006,199.35
  5. Step 5: Solve for x
    x = 278,267,006,199.35/660,027.67
  6. Step 6: Final answer
    x = 421,599.00

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