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Finding the Fourth Proportional to 545,708.52, 753,100.44 and 303,991.02

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Solution

The fourth proportional to 545,708.52, 753,100.44 and 303,991.02 is: 419,520.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,708.52 : 753,100.44 = 303,991.02 : x
  2. Step 2: Convert to fraction form
    545,708.52/753,100.44 = 303,991.02/x
  3. Step 3: Cross multiply
    545,708.52x = 753,100.44 × 303,991.02
  4. Step 4: Simplify right side
    545,708.52x = 228,935,770,918.05
  5. Step 5: Solve for x
    x = 228,935,770,918.05/545,708.52
  6. Step 6: Final answer
    x = 419,520.24

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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.