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Finding the Fourth Proportional to 450,804.89, 676,456.34 and 251,237.72

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Solution

The fourth proportional to 450,804.89, 676,456.34 and 251,237.72 is: 376,995.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,804.89 : 676,456.34 = 251,237.72 : x
  2. Step 2: Convert to fraction form
    450,804.89/676,456.34 = 251,237.72/x
  3. Step 3: Cross multiply
    450,804.89x = 676,456.34 × 251,237.72
  4. Step 4: Simplify right side
    450,804.89x = 169,951,348,976.10
  5. Step 5: Solve for x
    x = 169,951,348,976.10/450,804.89
  6. Step 6: Final answer
    x = 376,995.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.