Home / 1,321,042.40-1,978,199.69-870,397.04

Finding the Fourth Proportional to 1,321,042.40, 1,978,199.69 and 870,397.04

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Solution

The fourth proportional to 1,321,042.40, 1,978,199.69 and 870,397.04 is: 1,303,379.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,042.40 : 1,978,199.69 = 870,397.04 : x
  2. Step 2: Convert to fraction form
    1,321,042.40/1,978,199.69 = 870,397.04/x
  3. Step 3: Cross multiply
    1,321,042.40x = 1,978,199.69 × 870,397.04
  4. Step 4: Simplify right side
    1,321,042.40x = 1,721,819,154,704.92
  5. Step 5: Solve for x
    x = 1,721,819,154,704.92/1,321,042.40
  6. Step 6: Final answer
    x = 1,303,379.18

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