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Finding the Fourth Proportional to 449,488.94, 674,228.80 and 259,828.63

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Solution

The fourth proportional to 449,488.94, 674,228.80 and 259,828.63 is: 389,740.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,488.94 : 674,228.80 = 259,828.63 : x
  2. Step 2: Convert to fraction form
    449,488.94/674,228.80 = 259,828.63/x
  3. Step 3: Cross multiply
    449,488.94x = 674,228.80 × 259,828.63
  4. Step 4: Simplify right side
    449,488.94x = 175,183,945,410.54
  5. Step 5: Solve for x
    x = 175,183,945,410.54/449,488.94
  6. Step 6: Final answer
    x = 389,740.28

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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.