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Finding the Fourth Proportional to 438,634.93, 656,455.37 and 367,637.73

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Solution

The fourth proportional to 438,634.93, 656,455.37 and 367,637.73 is: 550,201.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,634.93 : 656,455.37 = 367,637.73 : x
  2. Step 2: Convert to fraction form
    438,634.93/656,455.37 = 367,637.73/x
  3. Step 3: Cross multiply
    438,634.93x = 656,455.37 × 367,637.73
  4. Step 4: Simplify right side
    438,634.93x = 241,337,762,073.11
  5. Step 5: Solve for x
    x = 241,337,762,073.11/438,634.93
  6. Step 6: Final answer
    x = 550,201.88

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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.