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Finding the Fourth Proportional to 547,549.30, 755,610.07 and 305,835.31

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Solution

The fourth proportional to 547,549.30, 755,610.07 and 305,835.31 is: 422,048.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,549.30 : 755,610.07 = 305,835.31 : x
  2. Step 2: Convert to fraction form
    547,549.30/755,610.07 = 305,835.31/x
  3. Step 3: Cross multiply
    547,549.30x = 755,610.07 × 305,835.31
  4. Step 4: Simplify right side
    547,549.30x = 231,092,234,690.35
  5. Step 5: Solve for x
    x = 231,092,234,690.35/547,549.30
  6. Step 6: Final answer
    x = 422,048.27

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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.