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Finding the Fourth Proportional to 538,032.20, 804,974.70 and 351,408.20

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Solution

The fourth proportional to 538,032.20, 804,974.70 and 351,408.20 is: 525,757.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,032.20 : 804,974.70 = 351,408.20 : x
  2. Step 2: Convert to fraction form
    538,032.20/804,974.70 = 351,408.20/x
  3. Step 3: Cross multiply
    538,032.20x = 804,974.70 × 351,408.20
  4. Step 4: Simplify right side
    538,032.20x = 282,874,710,372.54
  5. Step 5: Solve for x
    x = 282,874,710,372.54/538,032.20
  6. Step 6: Final answer
    x = 525,757.96

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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.