Home / 455,601.28-628,726.78-251,665.36

Finding the Fourth Proportional to 455,601.28, 628,726.78 and 251,665.36

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Solution

The fourth proportional to 455,601.28, 628,726.78 and 251,665.36 is: 347,296.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,601.28 : 628,726.78 = 251,665.36 : x
  2. Step 2: Convert to fraction form
    455,601.28/628,726.78 = 251,665.36/x
  3. Step 3: Cross multiply
    455,601.28x = 628,726.78 × 251,665.36
  4. Step 4: Simplify right side
    455,601.28x = 158,228,747,028.38
  5. Step 5: Solve for x
    x = 158,228,747,028.38/455,601.28
  6. Step 6: Final answer
    x = 347,296.54

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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.