Home / 842,418.96-1,162,537.92-479,876.40

Finding the Fourth Proportional to 842,418.96, 1,162,537.92 and 479,876.40

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Solution

The fourth proportional to 842,418.96, 1,162,537.92 and 479,876.40 is: 662,229.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,418.96 : 1,162,537.92 = 479,876.40 : x
  2. Step 2: Convert to fraction form
    842,418.96/1,162,537.92 = 479,876.40/x
  3. Step 3: Cross multiply
    842,418.96x = 1,162,537.92 × 479,876.40
  4. Step 4: Simplify right side
    842,418.96x = 557,874,511,913.09
  5. Step 5: Solve for x
    x = 557,874,511,913.09/842,418.96
  6. Step 6: Final answer
    x = 662,229.29

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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.