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Finding the Fourth Proportional to 568,429.26, 784,404.78 and 323,390.94

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Solution

The fourth proportional to 568,429.26, 784,404.78 and 323,390.94 is: 446,263.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,429.26 : 784,404.78 = 323,390.94 : x
  2. Step 2: Convert to fraction form
    568,429.26/784,404.78 = 323,390.94/x
  3. Step 3: Cross multiply
    568,429.26x = 784,404.78 × 323,390.94
  4. Step 4: Simplify right side
    568,429.26x = 253,669,399,144.69
  5. Step 5: Solve for x
    x = 253,669,399,144.69/568,429.26
  6. Step 6: Final answer
    x = 446,263.80

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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.