Home / 1,118,687.57-1,543,673.79-628,579.25

Finding the Fourth Proportional to 1,118,687.57, 1,543,673.79 and 628,579.25

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Solution

The fourth proportional to 1,118,687.57, 1,543,673.79 and 628,579.25 is: 867,374.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,687.57 : 1,543,673.79 = 628,579.25 : x
  2. Step 2: Convert to fraction form
    1,118,687.57/1,543,673.79 = 628,579.25/x
  3. Step 3: Cross multiply
    1,118,687.57x = 1,543,673.79 × 628,579.25
  4. Step 4: Simplify right side
    1,118,687.57x = 970,321,305,444.49
  5. Step 5: Solve for x
    x = 970,321,305,444.49/1,118,687.57
  6. Step 6: Final answer
    x = 867,374.71

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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.