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Finding the Fourth Proportional to 711,809.51, 982,297.19 and 389,519.66

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Solution

The fourth proportional to 711,809.51, 982,297.19 and 389,519.66 is: 537,537.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,809.51 : 982,297.19 = 389,519.66 : x
  2. Step 2: Convert to fraction form
    711,809.51/982,297.19 = 389,519.66/x
  3. Step 3: Cross multiply
    711,809.51x = 982,297.19 × 389,519.66
  4. Step 4: Simplify right side
    711,809.51x = 382,624,070,897.30
  5. Step 5: Solve for x
    x = 382,624,070,897.30/711,809.51
  6. Step 6: Final answer
    x = 537,537.18

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