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Finding the Fourth Proportional to 664,257.60, 995,365.80 and 494,983.80

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Solution

The fourth proportional to 664,257.60, 995,365.80 and 494,983.80 is: 741,715.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,257.60 : 995,365.80 = 494,983.80 : x
  2. Step 2: Convert to fraction form
    664,257.60/995,365.80 = 494,983.80/x
  3. Step 3: Cross multiply
    664,257.60x = 995,365.80 × 494,983.80
  4. Step 4: Simplify right side
    664,257.60x = 492,689,946,074.04
  5. Step 5: Solve for x
    x = 492,689,946,074.04/664,257.60
  6. Step 6: Final answer
    x = 741,715.18

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1.5x scale

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.