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Finding the Fourth Proportional to 403,262.40, 604,893.60 and 263,179.20

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Solution

The fourth proportional to 403,262.40, 604,893.60 and 263,179.20 is: 394,768.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,262.40 : 604,893.60 = 263,179.20 : x
  2. Step 2: Convert to fraction form
    403,262.40/604,893.60 = 263,179.20/x
  3. Step 3: Cross multiply
    403,262.40x = 604,893.60 × 263,179.20
  4. Step 4: Simplify right side
    403,262.40x = 159,195,413,733.12
  5. Step 5: Solve for x
    x = 159,195,413,733.12/403,262.40
  6. Step 6: Final answer
    x = 394,768.80

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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.