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Finding the Fourth Proportional to 494,416.60, 741,624.90 and 305,459.80

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Solution

The fourth proportional to 494,416.60, 741,624.90 and 305,459.80 is: 458,189.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,416.60 : 741,624.90 = 305,459.80 : x
  2. Step 2: Convert to fraction form
    494,416.60/741,624.90 = 305,459.80/x
  3. Step 3: Cross multiply
    494,416.60x = 741,624.90 × 305,459.80
  4. Step 4: Simplify right side
    494,416.60x = 226,536,593,629.02
  5. Step 5: Solve for x
    x = 226,536,593,629.02/494,416.60
  6. Step 6: Final answer
    x = 458,189.70

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Similar ratio
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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.