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Finding the Fourth Proportional to 545,905.86, 753,339.89 and 304,183.30

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Solution

The fourth proportional to 545,905.86, 753,339.89 and 304,183.30 is: 419,767.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,905.86 : 753,339.89 = 304,183.30 : x
  2. Step 2: Convert to fraction form
    545,905.86/753,339.89 = 304,183.30/x
  3. Step 3: Cross multiply
    545,905.86x = 753,339.89 × 304,183.30
  4. Step 4: Simplify right side
    545,905.86x = 229,153,413,761.84
  5. Step 5: Solve for x
    x = 229,153,413,761.84/545,905.86
  6. Step 6: Final answer
    x = 419,767.27

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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.