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Finding the Fourth Proportional to 538,735.80, 809,658.90 and 529,404.60

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Solution

The fourth proportional to 538,735.80, 809,658.90 and 529,404.60 is: 795,635.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,735.80 : 809,658.90 = 529,404.60 : x
  2. Step 2: Convert to fraction form
    538,735.80/809,658.90 = 529,404.60/x
  3. Step 3: Cross multiply
    538,735.80x = 809,658.90 × 529,404.60
  4. Step 4: Simplify right side
    538,735.80x = 428,637,146,090.94
  5. Step 5: Solve for x
    x = 428,637,146,090.94/538,735.80
  6. Step 6: Final answer
    x = 795,635.16

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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.