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Finding the Fourth Proportional to 550,018.40, 825,027.60 and 328,834.40

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Solution

The fourth proportional to 550,018.40, 825,027.60 and 328,834.40 is: 493,251.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,018.40 : 825,027.60 = 328,834.40 : x
  2. Step 2: Convert to fraction form
    550,018.40/825,027.60 = 328,834.40/x
  3. Step 3: Cross multiply
    550,018.40x = 825,027.60 × 328,834.40
  4. Step 4: Simplify right side
    550,018.40x = 271,297,455,829.44
  5. Step 5: Solve for x
    x = 271,297,455,829.44/550,018.40
  6. Step 6: Final answer
    x = 493,251.60

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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.