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Finding the Fourth Proportional to 618,408.72, 925,745.76 and 559,272.24

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Solution

The fourth proportional to 618,408.72, 925,745.76 and 559,272.24 is: 837,219.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,408.72 : 925,745.76 = 559,272.24 : x
  2. Step 2: Convert to fraction form
    618,408.72/925,745.76 = 559,272.24/x
  3. Step 3: Cross multiply
    618,408.72x = 925,745.76 × 559,272.24
  4. Step 4: Simplify right side
    618,408.72x = 517,743,904,865.70
  5. Step 5: Solve for x
    x = 517,743,904,865.70/618,408.72
  6. Step 6: Final answer
    x = 837,219.61

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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.