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Finding the Fourth Proportional to 636,206.46, 877,965.96 and 349,728.36

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Solution

The fourth proportional to 636,206.46, 877,965.96 and 349,728.36 is: 482,625.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,206.46 : 877,965.96 = 349,728.36 : x
  2. Step 2: Convert to fraction form
    636,206.46/877,965.96 = 349,728.36/x
  3. Step 3: Cross multiply
    636,206.46x = 877,965.96 × 349,728.36
  4. Step 4: Simplify right side
    636,206.46x = 307,049,595,326.63
  5. Step 5: Solve for x
    x = 307,049,595,326.63/636,206.46
  6. Step 6: Final answer
    x = 482,625.71

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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.