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Finding the Fourth Proportional to 609,539.78, 914,369.81 and 210,127.97

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Solution

The fourth proportional to 609,539.78, 914,369.81 and 210,127.97 is: 315,212.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,539.78 : 914,369.81 = 210,127.97 : x
  2. Step 2: Convert to fraction form
    609,539.78/914,369.81 = 210,127.97/x
  3. Step 3: Cross multiply
    609,539.78x = 914,369.81 × 210,127.97
  4. Step 4: Simplify right side
    609,539.78x = 192,134,666,382.10
  5. Step 5: Solve for x
    x = 192,134,666,382.10/609,539.78
  6. Step 6: Final answer
    x = 315,212.68

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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.