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Finding the Fourth Proportional to 492,294, 679,365.72 and 265,939.52

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Solution

The fourth proportional to 492,294, 679,365.72 and 265,939.52 is: 366,996.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,294 : 679,365.72 = 265,939.52 : x
  2. Step 2: Convert to fraction form
    492,294/679,365.72 = 265,939.52/x
  3. Step 3: Cross multiply
    492,294x = 679,365.72 × 265,939.52
  4. Step 4: Simplify right side
    492,294x = 180,670,193,481.25
  5. Step 5: Solve for x
    x = 180,670,193,481.25/492,294
  6. Step 6: Final answer
    x = 366,996.54

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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.