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Finding the Fourth Proportional to 449,496.21, 674,239.67 and 259,835.88

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Solution

The fourth proportional to 449,496.21, 674,239.67 and 259,835.88 is: 389,751.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,496.21 : 674,239.67 = 259,835.88 : x
  2. Step 2: Convert to fraction form
    449,496.21/674,239.67 = 259,835.88/x
  3. Step 3: Cross multiply
    449,496.21x = 674,239.67 × 259,835.88
  4. Step 4: Simplify right side
    449,496.21x = 175,191,656,686.18
  5. Step 5: Solve for x
    x = 175,191,656,686.18/449,496.21
  6. Step 6: Final answer
    x = 389,751.13

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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.