Home / 989,028.40-1,483,396.80-279,128.20

Finding the Fourth Proportional to 989,028.40, 1,483,396.80 and 279,128.20

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Solution

The fourth proportional to 989,028.40, 1,483,396.80 and 279,128.20 is: 418,651.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,028.40 : 1,483,396.80 = 279,128.20 : x
  2. Step 2: Convert to fraction form
    989,028.40/1,483,396.80 = 279,128.20/x
  3. Step 3: Cross multiply
    989,028.40x = 1,483,396.80 × 279,128.20
  4. Step 4: Simplify right side
    989,028.40x = 414,057,878,669.76
  5. Step 5: Solve for x
    x = 414,057,878,669.76/989,028.40
  6. Step 6: Final answer
    x = 418,651.15

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