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Finding the Fourth Proportional to 456,821.80, 685,232.70 and 410,165.80

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Solution

The fourth proportional to 456,821.80, 685,232.70 and 410,165.80 is: 615,248.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,821.80 : 685,232.70 = 410,165.80 : x
  2. Step 2: Convert to fraction form
    456,821.80/685,232.70 = 410,165.80/x
  3. Step 3: Cross multiply
    456,821.80x = 685,232.70 × 410,165.80
  4. Step 4: Simplify right side
    456,821.80x = 281,059,018,581.66
  5. Step 5: Solve for x
    x = 281,059,018,581.66/456,821.80
  6. Step 6: Final answer
    x = 615,248.70

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