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Finding the Fourth Proportional to 542,515.37, 748,669.91 and 300,791.72

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Solution

The fourth proportional to 542,515.37, 748,669.91 and 300,791.72 is: 415,091.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,515.37 : 748,669.91 = 300,791.72 : x
  2. Step 2: Convert to fraction form
    542,515.37/748,669.91 = 300,791.72/x
  3. Step 3: Cross multiply
    542,515.37x = 748,669.91 × 300,791.72
  4. Step 4: Simplify right side
    542,515.37x = 225,193,712,564.80
  5. Step 5: Solve for x
    x = 225,193,712,564.80/542,515.37
  6. Step 6: Final answer
    x = 415,091.86

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.