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Finding the Fourth Proportional to 445,662.48, 668,918.24 and 276,671.44

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Solution

The fourth proportional to 445,662.48, 668,918.24 and 276,671.44 is: 415,270.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,662.48 : 668,918.24 = 276,671.44 : x
  2. Step 2: Convert to fraction form
    445,662.48/668,918.24 = 276,671.44/x
  3. Step 3: Cross multiply
    445,662.48x = 668,918.24 × 276,671.44
  4. Step 4: Simplify right side
    445,662.48x = 185,070,572,703.07
  5. Step 5: Solve for x
    x = 185,070,572,703.07/445,662.48
  6. Step 6: Final answer
    x = 415,270.71

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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.