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Finding the Fourth Proportional to 644,672.48, 965,679.74 and 377,623.36

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Solution

The fourth proportional to 644,672.48, 965,679.74 and 377,623.36 is: 565,656.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,672.48 : 965,679.74 = 377,623.36 : x
  2. Step 2: Convert to fraction form
    644,672.48/965,679.74 = 377,623.36/x
  3. Step 3: Cross multiply
    644,672.48x = 965,679.74 × 377,623.36
  4. Step 4: Simplify right side
    644,672.48x = 364,663,228,102.73
  5. Step 5: Solve for x
    x = 364,663,228,102.73/644,672.48
  6. Step 6: Final answer
    x = 565,656.58

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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.