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Finding the Fourth Proportional to 395,654.10, 546,250.28 and 304,837.71

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Solution

The fourth proportional to 395,654.10, 546,250.28 and 304,837.71 is: 420,866.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,654.10 : 546,250.28 = 304,837.71 : x
  2. Step 2: Convert to fraction form
    395,654.10/546,250.28 = 304,837.71/x
  3. Step 3: Cross multiply
    395,654.10x = 546,250.28 × 304,837.71
  4. Step 4: Simplify right side
    395,654.10x = 166,517,682,917.87
  5. Step 5: Solve for x
    x = 166,517,682,917.87/395,654.10
  6. Step 6: Final answer
    x = 420,866.82

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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.