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Finding the Fourth Proportional to 534,321.98, 737,359.09 and 289,305.54

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Solution

The fourth proportional to 534,321.98, 737,359.09 and 289,305.54 is: 399,238.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,321.98 : 737,359.09 = 289,305.54 : x
  2. Step 2: Convert to fraction form
    534,321.98/737,359.09 = 289,305.54/x
  3. Step 3: Cross multiply
    534,321.98x = 737,359.09 × 289,305.54
  4. Step 4: Simplify right side
    534,321.98x = 213,322,069,706.36
  5. Step 5: Solve for x
    x = 213,322,069,706.36/534,321.98
  6. Step 6: Final answer
    x = 399,238.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.