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Finding the Fourth Proportional to 717,396.88, 990,052.46 and 395,106.89

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Solution

The fourth proportional to 717,396.88, 990,052.46 and 395,106.89 is: 545,272.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,396.88 : 990,052.46 = 395,106.89 : x
  2. Step 2: Convert to fraction form
    717,396.88/990,052.46 = 395,106.89/x
  3. Step 3: Cross multiply
    717,396.88x = 990,052.46 × 395,106.89
  4. Step 4: Simplify right side
    717,396.88x = 391,176,543,457.19
  5. Step 5: Solve for x
    x = 391,176,543,457.19/717,396.88
  6. Step 6: Final answer
    x = 545,272.16

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