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Finding the Fourth Proportional to 449,200.10, 673,800.15 and 443,295.20

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Solution

The fourth proportional to 449,200.10, 673,800.15 and 443,295.20 is: 664,942.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,200.10 : 673,800.15 = 443,295.20 : x
  2. Step 2: Convert to fraction form
    449,200.10/673,800.15 = 443,295.20/x
  3. Step 3: Cross multiply
    449,200.10x = 673,800.15 × 443,295.20
  4. Step 4: Simplify right side
    449,200.10x = 298,692,372,254.28
  5. Step 5: Solve for x
    x = 298,692,372,254.28/449,200.10
  6. Step 6: Final answer
    x = 664,942.80

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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.