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Finding the Fourth Proportional to 492,389.76, 738,234.72 and 252,576

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Solution

The fourth proportional to 492,389.76, 738,234.72 and 252,576 is: 378,684.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,389.76 : 738,234.72 = 252,576 : x
  2. Step 2: Convert to fraction form
    492,389.76/738,234.72 = 252,576/x
  3. Step 3: Cross multiply
    492,389.76x = 738,234.72 × 252,576
  4. Step 4: Simplify right side
    492,389.76x = 186,460,372,638.72
  5. Step 5: Solve for x
    x = 186,460,372,638.72/492,389.76
  6. Step 6: Final answer
    x = 378,684.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.