Home / 328,049.20-490,761.60-284,163.40

Finding the Fourth Proportional to 328,049.20, 490,761.60 and 284,163.40

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Solution

The fourth proportional to 328,049.20, 490,761.60 and 284,163.40 is: 425,108.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,049.20 : 490,761.60 = 284,163.40 : x
  2. Step 2: Convert to fraction form
    328,049.20/490,761.60 = 284,163.40/x
  3. Step 3: Cross multiply
    328,049.20x = 490,761.60 × 284,163.40
  4. Step 4: Simplify right side
    328,049.20x = 139,456,484,845.44
  5. Step 5: Solve for x
    x = 139,456,484,845.44/328,049.20
  6. Step 6: Final answer
    x = 425,108.44

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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.