Home / 783,745.89-1,174,635.35-423,902.37

Finding the Fourth Proportional to 783,745.89, 1,174,635.35 and 423,902.37

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Solution

The fourth proportional to 783,745.89, 1,174,635.35 and 423,902.37 is: 635,321.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,745.89 : 1,174,635.35 = 423,902.37 : x
  2. Step 2: Convert to fraction form
    783,745.89/1,174,635.35 = 423,902.37/x
  3. Step 3: Cross multiply
    783,745.89x = 1,174,635.35 × 423,902.37
  4. Step 4: Simplify right side
    783,745.89x = 497,930,708,750.78
  5. Step 5: Solve for x
    x = 497,930,708,750.78/783,745.89
  6. Step 6: Final answer
    x = 635,321.62

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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.