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Finding the Fourth Proportional to 547,669.78, 819,506.39 and 323,137.78

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Solution

The fourth proportional to 547,669.78, 819,506.39 and 323,137.78 is: 483,527.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,669.78 : 819,506.39 = 323,137.78 : x
  2. Step 2: Convert to fraction form
    547,669.78/819,506.39 = 323,137.78/x
  3. Step 3: Cross multiply
    547,669.78x = 819,506.39 × 323,137.78
  4. Step 4: Simplify right side
    547,669.78x = 264,813,471,895.96
  5. Step 5: Solve for x
    x = 264,813,471,895.96/547,669.78
  6. Step 6: Final answer
    x = 483,527.63

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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.