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Finding the Fourth Proportional to 576,403.80, 795,404.25 and 321,771.12

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Solution

The fourth proportional to 576,403.80, 795,404.25 and 321,771.12 is: 444,025.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,403.80 : 795,404.25 = 321,771.12 : x
  2. Step 2: Convert to fraction form
    576,403.80/795,404.25 = 321,771.12/x
  3. Step 3: Cross multiply
    576,403.80x = 795,404.25 × 321,771.12
  4. Step 4: Simplify right side
    576,403.80x = 255,938,116,375.26
  5. Step 5: Solve for x
    x = 255,938,116,375.26/576,403.80
  6. Step 6: Final answer
    x = 444,025.73

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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.