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Finding the Fourth Proportional to 547,489.68, 821,110.68 and 173,308.56

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Solution

The fourth proportional to 547,489.68, 821,110.68 and 173,308.56 is: 259,923.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,489.68 : 821,110.68 = 173,308.56 : x
  2. Step 2: Convert to fraction form
    547,489.68/821,110.68 = 173,308.56/x
  3. Step 3: Cross multiply
    547,489.68x = 821,110.68 × 173,308.56
  4. Step 4: Simplify right side
    547,489.68x = 142,305,509,551.42
  5. Step 5: Solve for x
    x = 142,305,509,551.42/547,489.68
  6. Step 6: Final answer
    x = 259,923.64

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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.