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Finding the Fourth Proportional to 574,241.40, 860,399.82 and 405,481.55

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Solution

The fourth proportional to 574,241.40, 860,399.82 and 405,481.55 is: 607,542.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,241.40 : 860,399.82 = 405,481.55 : x
  2. Step 2: Convert to fraction form
    574,241.40/860,399.82 = 405,481.55/x
  3. Step 3: Cross multiply
    574,241.40x = 860,399.82 × 405,481.55
  4. Step 4: Simplify right side
    574,241.40x = 348,876,248,331.32
  5. Step 5: Solve for x
    x = 348,876,248,331.32/574,241.40
  6. Step 6: Final answer
    x = 607,542.84

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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.