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Finding the Fourth Proportional to 576,558.98, 864,841.54 and 378,135.89

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Solution

The fourth proportional to 576,558.98, 864,841.54 and 378,135.89 is: 567,205.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,558.98 : 864,841.54 = 378,135.89 : x
  2. Step 2: Convert to fraction form
    576,558.98/864,841.54 = 378,135.89/x
  3. Step 3: Cross multiply
    576,558.98x = 864,841.54 × 378,135.89
  4. Step 4: Simplify right side
    576,558.98x = 327,027,628,984.22
  5. Step 5: Solve for x
    x = 327,027,628,984.22/576,558.98
  6. Step 6: Final answer
    x = 567,205.86

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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.