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Finding the Fourth Proportional to 547,606.34, 755,647.50 and 305,855.36

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Solution

The fourth proportional to 547,606.34, 755,647.50 and 305,855.36 is: 422,052.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,606.34 : 755,647.50 = 305,855.36 : x
  2. Step 2: Convert to fraction form
    547,606.34/755,647.50 = 305,855.36/x
  3. Step 3: Cross multiply
    547,606.34x = 755,647.50 × 305,855.36
  4. Step 4: Simplify right side
    547,606.34x = 231,118,838,145.60
  5. Step 5: Solve for x
    x = 231,118,838,145.60/547,606.34
  6. Step 6: Final answer
    x = 422,052.89

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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.