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Finding the Fourth Proportional to 577,231.40, 865,847.10 and 472,255.40

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Solution

The fourth proportional to 577,231.40, 865,847.10 and 472,255.40 is: 708,383.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,231.40 : 865,847.10 = 472,255.40 : x
  2. Step 2: Convert to fraction form
    577,231.40/865,847.10 = 472,255.40/x
  3. Step 3: Cross multiply
    577,231.40x = 865,847.10 × 472,255.40
  4. Step 4: Simplify right side
    577,231.40x = 408,900,968,549.34
  5. Step 5: Solve for x
    x = 408,900,968,549.34/577,231.40
  6. Step 6: Final answer
    x = 708,383.10

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