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Finding the Fourth Proportional to 415,846.80, 622,603.80 and 404,182.80

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Solution

The fourth proportional to 415,846.80, 622,603.80 and 404,182.80 is: 605,140.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,846.80 : 622,603.80 = 404,182.80 : x
  2. Step 2: Convert to fraction form
    415,846.80/622,603.80 = 404,182.80/x
  3. Step 3: Cross multiply
    415,846.80x = 622,603.80 × 404,182.80
  4. Step 4: Simplify right side
    415,846.80x = 251,645,747,174.64
  5. Step 5: Solve for x
    x = 251,645,747,174.64/415,846.80
  6. Step 6: Final answer
    x = 605,140.52

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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.