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Finding the Fourth Proportional to 449,800.16, 674,810.84 and 316,939.92

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Solution

The fourth proportional to 449,800.16, 674,810.84 and 316,939.92 is: 475,487.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,800.16 : 674,810.84 = 316,939.92 : x
  2. Step 2: Convert to fraction form
    449,800.16/674,810.84 = 316,939.92/x
  3. Step 3: Cross multiply
    449,800.16x = 674,810.84 × 316,939.92
  4. Step 4: Simplify right side
    449,800.16x = 213,874,493,644.73
  5. Step 5: Solve for x
    x = 213,874,493,644.73/449,800.16
  6. Step 6: Final answer
    x = 475,487.81

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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.