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Finding the Fourth Proportional to 661,676.22, 992,561.76 and 277,038

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Solution

The fourth proportional to 661,676.22, 992,561.76 and 277,038 is: 415,576.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,676.22 : 992,561.76 = 277,038 : x
  2. Step 2: Convert to fraction form
    661,676.22/992,561.76 = 277,038/x
  3. Step 3: Cross multiply
    661,676.22x = 992,561.76 × 277,038
  4. Step 4: Simplify right side
    661,676.22x = 274,977,324,866.88
  5. Step 5: Solve for x
    x = 274,977,324,866.88/661,676.22
  6. Step 6: Final answer
    x = 415,576.86

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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.