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Finding the Fourth Proportional to 551,469.36, 760,982.22 and 306,461.34

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Solution

The fourth proportional to 551,469.36, 760,982.22 and 306,461.34 is: 422,891.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,469.36 : 760,982.22 = 306,461.34 : x
  2. Step 2: Convert to fraction form
    551,469.36/760,982.22 = 306,461.34/x
  3. Step 3: Cross multiply
    551,469.36x = 760,982.22 × 306,461.34
  4. Step 4: Simplify right side
    551,469.36x = 233,211,630,857.38
  5. Step 5: Solve for x
    x = 233,211,630,857.38/551,469.36
  6. Step 6: Final answer
    x = 422,891.37

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Why These Related Problems?

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