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Finding the Fourth Proportional to 576,013.08, 794,900.34 and 321,375

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Solution

The fourth proportional to 576,013.08, 794,900.34 and 321,375 is: 443,498.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,013.08 : 794,900.34 = 321,375 : x
  2. Step 2: Convert to fraction form
    576,013.08/794,900.34 = 321,375/x
  3. Step 3: Cross multiply
    576,013.08x = 794,900.34 × 321,375
  4. Step 4: Simplify right side
    576,013.08x = 255,461,096,767.50
  5. Step 5: Solve for x
    x = 255,461,096,767.50/576,013.08
  6. Step 6: Final answer
    x = 443,498.78

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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.