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Finding the Fourth Proportional to 710,282.18, 980,173.09 and 387,993.71

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Solution

The fourth proportional to 710,282.18, 980,173.09 and 387,993.71 is: 535,422.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,282.18 : 980,173.09 = 387,993.71 : x
  2. Step 2: Convert to fraction form
    710,282.18/980,173.09 = 387,993.71/x
  3. Step 3: Cross multiply
    710,282.18x = 980,173.09 × 387,993.71
  4. Step 4: Simplify right side
    710,282.18x = 380,300,993,631.26
  5. Step 5: Solve for x
    x = 380,300,993,631.26/710,282.18
  6. Step 6: Final answer
    x = 535,422.41

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