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Finding the Fourth Proportional to 654,709.67, 982,304.40 and 275,725.81

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Solution

The fourth proportional to 654,709.67, 982,304.40 and 275,725.81 is: 413,689.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,709.67 : 982,304.40 = 275,725.81 : x
  2. Step 2: Convert to fraction form
    654,709.67/982,304.40 = 275,725.81/x
  3. Step 3: Cross multiply
    654,709.67x = 982,304.40 × 275,725.81
  4. Step 4: Simplify right side
    654,709.67x = 270,846,676,356.56
  5. Step 5: Solve for x
    x = 270,846,676,356.56/654,709.67
  6. Step 6: Final answer
    x = 413,689.74

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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.