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Finding the Fourth Proportional to 438,635.93, 656,456.87 and 367,638.73

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Solution

The fourth proportional to 438,635.93, 656,456.87 and 367,638.73 is: 550,203.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,635.93 : 656,456.87 = 367,638.73 : x
  2. Step 2: Convert to fraction form
    438,635.93/656,456.87 = 367,638.73/x
  3. Step 3: Cross multiply
    438,635.93x = 656,456.87 × 367,638.73
  4. Step 4: Simplify right side
    438,635.93x = 241,338,964,866.10
  5. Step 5: Solve for x
    x = 241,338,964,866.10/438,635.93
  6. Step 6: Final answer
    x = 550,203.37

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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.