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Finding the Fourth Proportional to 1,317,343.68, 1,978,660.80 and 785,903.04

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Solution

The fourth proportional to 1,317,343.68, 1,978,660.80 and 785,903.04 is: 1,180,432.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,343.68 : 1,978,660.80 = 785,903.04 : x
  2. Step 2: Convert to fraction form
    1,317,343.68/1,978,660.80 = 785,903.04/x
  3. Step 3: Cross multiply
    1,317,343.68x = 1,978,660.80 × 785,903.04
  4. Step 4: Simplify right side
    1,317,343.68x = 1,555,035,537,848.83
  5. Step 5: Solve for x
    x = 1,555,035,537,848.83/1,317,343.68
  6. Step 6: Final answer
    x = 1,180,432.69

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