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Finding the Fourth Proportional to 443,676.30, 665,514.45 and 303,708.30

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Solution

The fourth proportional to 443,676.30, 665,514.45 and 303,708.30 is: 455,562.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,676.30 : 665,514.45 = 303,708.30 : x
  2. Step 2: Convert to fraction form
    443,676.30/665,514.45 = 303,708.30/x
  3. Step 3: Cross multiply
    443,676.30x = 665,514.45 × 303,708.30
  4. Step 4: Simplify right side
    443,676.30x = 202,122,262,234.94
  5. Step 5: Solve for x
    x = 202,122,262,234.94/443,676.30
  6. Step 6: Final answer
    x = 455,562.45

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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.