Home / 678,704.14-1,018,187.40-257,947.20

Finding the Fourth Proportional to 678,704.14, 1,018,187.40 and 257,947.20

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Solution

The fourth proportional to 678,704.14, 1,018,187.40 and 257,947.20 is: 386,970.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,704.14 : 1,018,187.40 = 257,947.20 : x
  2. Step 2: Convert to fraction form
    678,704.14/1,018,187.40 = 257,947.20/x
  3. Step 3: Cross multiply
    678,704.14x = 1,018,187.40 × 257,947.20
  4. Step 4: Simplify right side
    678,704.14x = 262,638,588,905.28
  5. Step 5: Solve for x
    x = 262,638,588,905.28/678,704.14
  6. Step 6: Final answer
    x = 386,970.66

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