Home / 2,815,171.52-4,222,721.28-685,257.44

Finding the Fourth Proportional to 2,815,171.52, 4,222,721.28 and 685,257.44

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Solution

The fourth proportional to 2,815,171.52, 4,222,721.28 and 685,257.44 is: 1,027,877.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815,171.52 : 4,222,721.28 = 685,257.44 : x
  2. Step 2: Convert to fraction form
    2,815,171.52/4,222,721.28 = 685,257.44/x
  3. Step 3: Cross multiply
    2,815,171.52x = 4,222,721.28 × 685,257.44
  4. Step 4: Simplify right side
    2,815,171.52x = 2,893,651,174,166.32
  5. Step 5: Solve for x
    x = 2,893,651,174,166.32/2,815,171.52
  6. Step 6: Final answer
    x = 1,027,877.40

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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.