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Finding the Fourth Proportional to 492,673.69, 679,838.97 and 363,680.79

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Solution

The fourth proportional to 492,673.69, 679,838.97 and 363,680.79 is: 501,842.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,673.69 : 679,838.97 = 363,680.79 : x
  2. Step 2: Convert to fraction form
    492,673.69/679,838.97 = 363,680.79/x
  3. Step 3: Cross multiply
    492,673.69x = 679,838.97 × 363,680.79
  4. Step 4: Simplify right side
    492,673.69x = 247,244,372,496.79
  5. Step 5: Solve for x
    x = 247,244,372,496.79/492,673.69
  6. Step 6: Final answer
    x = 501,842.04

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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.