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Finding the Fourth Proportional to 552,773.61, 762,768.77 and 311,051.97

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Solution

The fourth proportional to 552,773.61, 762,768.77 and 311,051.97 is: 429,218.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,773.61 : 762,768.77 = 311,051.97 : x
  2. Step 2: Convert to fraction form
    552,773.61/762,768.77 = 311,051.97/x
  3. Step 3: Cross multiply
    552,773.61x = 762,768.77 × 311,051.97
  4. Step 4: Simplify right side
    552,773.61x = 237,260,727,007.72
  5. Step 5: Solve for x
    x = 237,260,727,007.72/552,773.61
  6. Step 6: Final answer
    x = 429,218.62

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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.