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Finding the Fourth Proportional to 550,044.43, 759,063.08 and 305,046.77

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Solution

The fourth proportional to 550,044.43, 759,063.08 and 305,046.77 is: 420,965.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,044.43 : 759,063.08 = 305,046.77 : x
  2. Step 2: Convert to fraction form
    550,044.43/759,063.08 = 305,046.77/x
  3. Step 3: Cross multiply
    550,044.43x = 759,063.08 × 305,046.77
  4. Step 4: Simplify right side
    550,044.43x = 231,549,737,747.55
  5. Step 5: Solve for x
    x = 231,549,737,747.55/550,044.43
  6. Step 6: Final answer
    x = 420,965.52

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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.