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Finding the Fourth Proportional to 449,064.92, 673,239.50 and 259,309.86

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Solution

The fourth proportional to 449,064.92, 673,239.50 and 259,309.86 is: 388,758.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,064.92 : 673,239.50 = 259,309.86 : x
  2. Step 2: Convert to fraction form
    449,064.92/673,239.50 = 259,309.86/x
  3. Step 3: Cross multiply
    449,064.92x = 673,239.50 × 259,309.86
  4. Step 4: Simplify right side
    449,064.92x = 174,577,640,491.47
  5. Step 5: Solve for x
    x = 174,577,640,491.47/449,064.92
  6. Step 6: Final answer
    x = 388,758.13

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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.