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Finding the Fourth Proportional to 644,676.98, 967,208.66 and 260,227.90

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Solution

The fourth proportional to 644,676.98, 967,208.66 and 260,227.90 is: 390,419.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,676.98 : 967,208.66 = 260,227.90 : x
  2. Step 2: Convert to fraction form
    644,676.98/967,208.66 = 260,227.90/x
  3. Step 3: Cross multiply
    644,676.98x = 967,208.66 × 260,227.90
  4. Step 4: Simplify right side
    644,676.98x = 251,694,676,686.16
  5. Step 5: Solve for x
    x = 251,694,676,686.16/644,676.98
  6. Step 6: Final answer
    x = 390,419.83

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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.