Home / 498,383.75-687,769.58-272,029.25

Finding the Fourth Proportional to 498,383.75, 687,769.58 and 272,029.25

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Solution

The fourth proportional to 498,383.75, 687,769.58 and 272,029.25 is: 375,400.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,383.75 : 687,769.58 = 272,029.25 : x
  2. Step 2: Convert to fraction form
    498,383.75/687,769.58 = 272,029.25/x
  3. Step 3: Cross multiply
    498,383.75x = 687,769.58 × 272,029.25
  4. Step 4: Simplify right side
    498,383.75x = 187,093,438,221.22
  5. Step 5: Solve for x
    x = 187,093,438,221.22/498,383.75
  6. Step 6: Final answer
    x = 375,400.36

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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.