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Finding the Fourth Proportional to 753,607.80, 1,130,411.70 and 310,375.80

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Solution

The fourth proportional to 753,607.80, 1,130,411.70 and 310,375.80 is: 465,563.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,607.80 : 1,130,411.70 = 310,375.80 : x
  2. Step 2: Convert to fraction form
    753,607.80/1,130,411.70 = 310,375.80/x
  3. Step 3: Cross multiply
    753,607.80x = 1,130,411.70 × 310,375.80
  4. Step 4: Simplify right side
    753,607.80x = 350,852,435,716.86
  5. Step 5: Solve for x
    x = 350,852,435,716.86/753,607.80
  6. Step 6: Final answer
    x = 465,563.70

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