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Finding the Fourth Proportional to 550,013.86, 758,980.73 and 305,011.04

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Solution

The fourth proportional to 550,013.86, 758,980.73 and 305,011.04 is: 420,893.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,013.86 : 758,980.73 = 305,011.04 : x
  2. Step 2: Convert to fraction form
    550,013.86/758,980.73 = 305,011.04/x
  3. Step 3: Cross multiply
    550,013.86x = 758,980.73 × 305,011.04
  4. Step 4: Simplify right side
    550,013.86x = 231,497,498,764.88
  5. Step 5: Solve for x
    x = 231,497,498,764.88/550,013.86
  6. Step 6: Final answer
    x = 420,893.94

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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.