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Finding the Fourth Proportional to 644,696.72, 967,196.40 and 633,985.94

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Solution

The fourth proportional to 644,696.72, 967,196.40 and 633,985.94 is: 951,127.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,696.72 : 967,196.40 = 633,985.94 : x
  2. Step 2: Convert to fraction form
    644,696.72/967,196.40 = 633,985.94/x
  3. Step 3: Cross multiply
    644,696.72x = 967,196.40 × 633,985.94
  4. Step 4: Simplify right side
    644,696.72x = 613,188,918,818.62
  5. Step 5: Solve for x
    x = 613,188,918,818.62/644,696.72
  6. Step 6: Final answer
    x = 951,127.72

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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.