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Finding the Fourth Proportional to 715,063.52, 986,791.74 and 392,762.90

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Solution

The fourth proportional to 715,063.52, 986,791.74 and 392,762.90 is: 542,015.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,063.52 : 986,791.74 = 392,762.90 : x
  2. Step 2: Convert to fraction form
    715,063.52/986,791.74 = 392,762.90/x
  3. Step 3: Cross multiply
    715,063.52x = 986,791.74 × 392,762.90
  4. Step 4: Simplify right side
    715,063.52x = 387,575,185,498.45
  5. Step 5: Solve for x
    x = 387,575,185,498.45/715,063.52
  6. Step 6: Final answer
    x = 542,015.04

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