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Finding the Fourth Proportional to 644,665.16, 965,668.98 and 377,616.06

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Solution

The fourth proportional to 644,665.16, 965,668.98 and 377,616.06 is: 565,645.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,665.16 : 965,668.98 = 377,616.06 : x
  2. Step 2: Convert to fraction form
    644,665.16/965,668.98 = 377,616.06/x
  3. Step 3: Cross multiply
    644,665.16x = 965,668.98 × 377,616.06
  4. Step 4: Simplify right side
    644,665.16x = 364,652,115,491.82
  5. Step 5: Solve for x
    x = 364,652,115,491.82/644,665.16
  6. Step 6: Final answer
    x = 565,645.77

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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.