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Finding the Fourth Proportional to 718,203.65, 991,127.95 and 395,925.30

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Solution

The fourth proportional to 718,203.65, 991,127.95 and 395,925.30 is: 546,380.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,203.65 : 991,127.95 = 395,925.30 : x
  2. Step 2: Convert to fraction form
    718,203.65/991,127.95 = 395,925.30/x
  3. Step 3: Cross multiply
    718,203.65x = 991,127.95 × 395,925.30
  4. Step 4: Simplify right side
    718,203.65x = 392,412,629,952.32
  5. Step 5: Solve for x
    x = 392,412,629,952.32/718,203.65
  6. Step 6: Final answer
    x = 546,380.73

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