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Finding the Fourth Proportional to 550,898.27, 760,241.09 and 305,883.50

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Solution

The fourth proportional to 550,898.27, 760,241.09 and 305,883.50 is: 422,120.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,898.27 : 760,241.09 = 305,883.50 : x
  2. Step 2: Convert to fraction form
    550,898.27/760,241.09 = 305,883.50/x
  3. Step 3: Cross multiply
    550,898.27x = 760,241.09 × 305,883.50
  4. Step 4: Simplify right side
    550,898.27x = 232,545,202,973.30
  5. Step 5: Solve for x
    x = 232,545,202,973.30/550,898.27
  6. Step 6: Final answer
    x = 422,120.05

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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.