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Finding the Fourth Proportional to 538,004.20, 804,932.70 and 351,380.20

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Solution

The fourth proportional to 538,004.20, 804,932.70 and 351,380.20 is: 525,715.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,004.20 : 804,932.70 = 351,380.20 : x
  2. Step 2: Convert to fraction form
    538,004.20/804,932.70 = 351,380.20/x
  3. Step 3: Cross multiply
    538,004.20x = 804,932.70 × 351,380.20
  4. Step 4: Simplify right side
    538,004.20x = 282,837,413,112.54
  5. Step 5: Solve for x
    x = 282,837,413,112.54/538,004.20
  6. Step 6: Final answer
    x = 525,715.99

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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.