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Finding the Fourth Proportional to 636,063.77, 877,757.81 and 349,577.71

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Solution

The fourth proportional to 636,063.77, 877,757.81 and 349,577.71 is: 482,411.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,063.77 : 877,757.81 = 349,577.71 : x
  2. Step 2: Convert to fraction form
    636,063.77/877,757.81 = 349,577.71/x
  3. Step 3: Cross multiply
    636,063.77x = 877,757.81 × 349,577.71
  4. Step 4: Simplify right side
    636,063.77x = 306,844,563,833.97
  5. Step 5: Solve for x
    x = 306,844,563,833.97/636,063.77
  6. Step 6: Final answer
    x = 482,411.63

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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.