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Finding the Fourth Proportional to 636,063.49, 877,730.54 and 349,583.82

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Solution

The fourth proportional to 636,063.49, 877,730.54 and 349,583.82 is: 482,405.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,063.49 : 877,730.54 = 349,583.82 : x
  2. Step 2: Convert to fraction form
    636,063.49/877,730.54 = 349,583.82/x
  3. Step 3: Cross multiply
    636,063.49x = 877,730.54 × 349,583.82
  4. Step 4: Simplify right side
    636,063.49x = 306,840,395,103.86
  5. Step 5: Solve for x
    x = 306,840,395,103.86/636,063.49
  6. Step 6: Final answer
    x = 482,405.29

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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.