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Finding the Fourth Proportional to 477,966.20, 716,949.30 and 454,638.20

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Solution

The fourth proportional to 477,966.20, 716,949.30 and 454,638.20 is: 681,957.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,966.20 : 716,949.30 = 454,638.20 : x
  2. Step 2: Convert to fraction form
    477,966.20/716,949.30 = 454,638.20/x
  3. Step 3: Cross multiply
    477,966.20x = 716,949.30 × 454,638.20
  4. Step 4: Simplify right side
    477,966.20x = 325,952,539,243.26
  5. Step 5: Solve for x
    x = 325,952,539,243.26/477,966.20
  6. Step 6: Final answer
    x = 681,957.30

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