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Finding the Fourth Proportional to 5,620,957, 7,757,971.50 and 3,206,509

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Solution

The fourth proportional to 5,620,957, 7,757,971.50 and 3,206,509 is: 4,425,581.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,620,957 : 7,757,971.50 = 3,206,509 : x
  2. Step 2: Convert to fraction form
    5,620,957/7,757,971.50 = 3,206,509/x
  3. Step 3: Cross multiply
    5,620,957x = 7,757,971.50 × 3,206,509
  4. Step 4: Simplify right side
    5,620,957x = 24,876,005,436,493.50
  5. Step 5: Solve for x
    x = 24,876,005,436,493.50/5,620,957
  6. Step 6: Final answer
    x = 4,425,581.88

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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.