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Finding the Fourth Proportional to 503,676.20, 695,098.68 and 285,900.14

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Solution

The fourth proportional to 503,676.20, 695,098.68 and 285,900.14 is: 394,556.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,676.20 : 695,098.68 = 285,900.14 : x
  2. Step 2: Convert to fraction form
    503,676.20/695,098.68 = 285,900.14/x
  3. Step 3: Cross multiply
    503,676.20x = 695,098.68 × 285,900.14
  4. Step 4: Simplify right side
    503,676.20x = 198,728,809,925.82
  5. Step 5: Solve for x
    x = 198,728,809,925.82/503,676.20
  6. Step 6: Final answer
    x = 394,556.68

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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.