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Finding the Fourth Proportional to 478,617.20, 717,877.20 and 163,069.55

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Solution

The fourth proportional to 478,617.20, 717,877.20 and 163,069.55 is: 244,587.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,617.20 : 717,877.20 = 163,069.55 : x
  2. Step 2: Convert to fraction form
    478,617.20/717,877.20 = 163,069.55/x
  3. Step 3: Cross multiply
    478,617.20x = 717,877.20 × 163,069.55
  4. Step 4: Simplify right side
    478,617.20x = 117,063,911,959.26
  5. Step 5: Solve for x
    x = 117,063,911,959.26/478,617.20
  6. Step 6: Final answer
    x = 244,587.77

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