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Finding the Fourth Proportional to 439,733.80, 617,027 and 439,733.80

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Solution

The fourth proportional to 439,733.80, 617,027 and 439,733.80 is: 617,027

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,733.80 : 617,027 = 439,733.80 : x
  2. Step 2: Convert to fraction form
    439,733.80/617,027 = 439,733.80/x
  3. Step 3: Cross multiply
    439,733.80x = 617,027 × 439,733.80
  4. Step 4: Simplify right side
    439,733.80x = 271,327,627,412.60
  5. Step 5: Solve for x
    x = 271,327,627,412.60/439,733.80
  6. Step 6: Final answer
    x = 617,027

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.