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Finding the Fourth Proportional to 494,070.66, 681,554.57 and 300,537.54

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Solution

The fourth proportional to 494,070.66, 681,554.57 and 300,537.54 is: 414,581.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,070.66 : 681,554.57 = 300,537.54 : x
  2. Step 2: Convert to fraction form
    494,070.66/681,554.57 = 300,537.54/x
  3. Step 3: Cross multiply
    494,070.66x = 681,554.57 × 300,537.54
  4. Step 4: Simplify right side
    494,070.66x = 204,832,732,340.87
  5. Step 5: Solve for x
    x = 204,832,732,340.87/494,070.66
  6. Step 6: Final answer
    x = 414,581.86

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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.