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Finding the Fourth Proportional to 449,001.78, 620,137.90 and 327,037.53

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Solution

The fourth proportional to 449,001.78, 620,137.90 and 327,037.53 is: 451,687.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,001.78 : 620,137.90 = 327,037.53 : x
  2. Step 2: Convert to fraction form
    449,001.78/620,137.90 = 327,037.53/x
  3. Step 3: Cross multiply
    449,001.78x = 620,137.90 × 327,037.53
  4. Step 4: Simplify right side
    449,001.78x = 202,808,368,152.87
  5. Step 5: Solve for x
    x = 202,808,368,152.87/449,001.78
  6. Step 6: Final answer
    x = 451,687.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.