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Finding the Fourth Proportional to 586,408.92, 878,013.57 and 443,822.90

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Solution

The fourth proportional to 586,408.92, 878,013.57 and 443,822.90 is: 664,523.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,408.92 : 878,013.57 = 443,822.90 : x
  2. Step 2: Convert to fraction form
    586,408.92/878,013.57 = 443,822.90/x
  3. Step 3: Cross multiply
    586,408.92x = 878,013.57 × 443,822.90
  4. Step 4: Simplify right side
    586,408.92x = 389,682,524,486.69
  5. Step 5: Solve for x
    x = 389,682,524,486.69/586,408.92
  6. Step 6: Final answer
    x = 664,523.53

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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.