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Finding the Fourth Proportional to 644,670.46, 965,676.92 and 377,621.36

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Solution

The fourth proportional to 644,670.46, 965,676.92 and 377,621.36 is: 565,653.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,670.46 : 965,676.92 = 377,621.36 : x
  2. Step 2: Convert to fraction form
    644,670.46/965,676.92 = 377,621.36/x
  3. Step 3: Cross multiply
    644,670.46x = 965,676.92 × 377,621.36
  4. Step 4: Simplify right side
    644,670.46x = 364,660,227,966.68
  5. Step 5: Solve for x
    x = 364,660,227,966.68/644,670.46
  6. Step 6: Final answer
    x = 565,653.70

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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.