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Finding the Fourth Proportional to 486,492.20, 727,988.70 and 329,028.20

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Solution

The fourth proportional to 486,492.20, 727,988.70 and 329,028.20 is: 492,359.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,492.20 : 727,988.70 = 329,028.20 : x
  2. Step 2: Convert to fraction form
    486,492.20/727,988.70 = 329,028.20/x
  3. Step 3: Cross multiply
    486,492.20x = 727,988.70 × 329,028.20
  4. Step 4: Simplify right side
    486,492.20x = 239,528,811,581.34
  5. Step 5: Solve for x
    x = 239,528,811,581.34/486,492.20
  6. Step 6: Final answer
    x = 492,359.00

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