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Finding the Fourth Proportional to 561,609.45, 841,940.33 and 261,932.13

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Solution

The fourth proportional to 561,609.45, 841,940.33 and 261,932.13 is: 392,677.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,609.45 : 841,940.33 = 261,932.13 : x
  2. Step 2: Convert to fraction form
    561,609.45/841,940.33 = 261,932.13/x
  3. Step 3: Cross multiply
    561,609.45x = 841,940.33 × 261,932.13
  4. Step 4: Simplify right side
    561,609.45x = 220,531,222,660.14
  5. Step 5: Solve for x
    x = 220,531,222,660.14/561,609.45
  6. Step 6: Final answer
    x = 392,677.19

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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.