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Finding the Fourth Proportional to 636,217.90, 877,958.49 and 349,735.93

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Solution

The fourth proportional to 636,217.90, 877,958.49 and 349,735.93 is: 482,623.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,217.90 : 877,958.49 = 349,735.93 : x
  2. Step 2: Convert to fraction form
    636,217.90/877,958.49 = 349,735.93/x
  3. Step 3: Cross multiply
    636,217.90x = 877,958.49 × 349,735.93
  4. Step 4: Simplify right side
    636,217.90x = 307,053,629,001.55
  5. Step 5: Solve for x
    x = 307,053,629,001.55/636,217.90
  6. Step 6: Final answer
    x = 482,623.37

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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.