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Finding the Fourth Proportional to 644,503.80, 967,101.30 and 270,564.60

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Solution

The fourth proportional to 644,503.80, 967,101.30 and 270,564.60 is: 405,991.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,503.80 : 967,101.30 = 270,564.60 : x
  2. Step 2: Convert to fraction form
    644,503.80/967,101.30 = 270,564.60/x
  3. Step 3: Cross multiply
    644,503.80x = 967,101.30 × 270,564.60
  4. Step 4: Simplify right side
    644,503.80x = 261,663,376,393.98
  5. Step 5: Solve for x
    x = 261,663,376,393.98/644,503.80
  6. Step 6: Final answer
    x = 405,991.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.