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Finding the Fourth Proportional to 547,406.52, 755,406.28 and 305,682.36

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Solution

The fourth proportional to 547,406.52, 755,406.28 and 305,682.36 is: 421,833.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,406.52 : 755,406.28 = 305,682.36 : x
  2. Step 2: Convert to fraction form
    547,406.52/755,406.28 = 305,682.36/x
  3. Step 3: Cross multiply
    547,406.52x = 755,406.28 × 305,682.36
  4. Step 4: Simplify right side
    547,406.52x = 230,914,374,429.22
  5. Step 5: Solve for x
    x = 230,914,374,429.22/547,406.52
  6. Step 6: Final answer
    x = 421,833.44

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