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Finding the Fourth Proportional to 496,353.07, 743,542.39 and 389,234.51

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Solution

The fourth proportional to 496,353.07, 743,542.39 and 389,234.51 is: 583,077.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,353.07 : 743,542.39 = 389,234.51 : x
  2. Step 2: Convert to fraction form
    496,353.07/743,542.39 = 389,234.51/x
  3. Step 3: Cross multiply
    496,353.07x = 743,542.39 × 389,234.51
  4. Step 4: Simplify right side
    496,353.07x = 289,412,359,385.98
  5. Step 5: Solve for x
    x = 289,412,359,385.98/496,353.07
  6. Step 6: Final answer
    x = 583,077.61

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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.