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Finding the Fourth Proportional to 664,258.60, 995,367.30 and 494,984.80

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Solution

The fourth proportional to 664,258.60, 995,367.30 and 494,984.80 is: 741,716.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,258.60 : 995,367.30 = 494,984.80 : x
  2. Step 2: Convert to fraction form
    664,258.60/995,367.30 = 494,984.80/x
  3. Step 3: Cross multiply
    664,258.60x = 995,367.30 × 494,984.80
  4. Step 4: Simplify right side
    664,258.60x = 492,691,683,917.04
  5. Step 5: Solve for x
    x = 492,691,683,917.04/664,258.60
  6. Step 6: Final answer
    x = 741,716.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.