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Finding the Fourth Proportional to 644,549.92, 967,152.48 and 289,491.52

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Solution

The fourth proportional to 644,549.92, 967,152.48 and 289,491.52 is: 434,384.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,549.92 : 967,152.48 = 289,491.52 : x
  2. Step 2: Convert to fraction form
    644,549.92/967,152.48 = 289,491.52/x
  3. Step 3: Cross multiply
    644,549.92x = 967,152.48 × 289,491.52
  4. Step 4: Simplify right side
    644,549.92x = 279,982,441,506.97
  5. Step 5: Solve for x
    x = 279,982,441,506.97/644,549.92
  6. Step 6: Final answer
    x = 434,384.42

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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.