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Finding the Fourth Proportional to 464,966.20, 697,449.30 and 405,917.20

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Solution

The fourth proportional to 464,966.20, 697,449.30 and 405,917.20 is: 608,875.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,966.20 : 697,449.30 = 405,917.20 : x
  2. Step 2: Convert to fraction form
    464,966.20/697,449.30 = 405,917.20/x
  3. Step 3: Cross multiply
    464,966.20x = 697,449.30 × 405,917.20
  4. Step 4: Simplify right side
    464,966.20x = 283,106,666,997.96
  5. Step 5: Solve for x
    x = 283,106,666,997.96/464,966.20
  6. Step 6: Final answer
    x = 608,875.80

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