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Finding the Fourth Proportional to 636,029.92, 877,744.38 and 349,571.80

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Solution

The fourth proportional to 636,029.92, 877,744.38 and 349,571.80 is: 482,421.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,029.92 : 877,744.38 = 349,571.80 : x
  2. Step 2: Convert to fraction form
    636,029.92/877,744.38 = 349,571.80/x
  3. Step 3: Cross multiply
    636,029.92x = 877,744.38 × 349,571.80
  4. Step 4: Simplify right side
    636,029.92x = 306,834,682,856.48
  5. Step 5: Solve for x
    x = 306,834,682,856.48/636,029.92
  6. Step 6: Final answer
    x = 482,421.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.