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Finding the Fourth Proportional to 587,587.40, 881,640.30 and 271,881.80

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Solution

The fourth proportional to 587,587.40, 881,640.30 and 271,881.80 is: 407,942.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,587.40 : 881,640.30 = 271,881.80 : x
  2. Step 2: Convert to fraction form
    587,587.40/881,640.30 = 271,881.80/x
  3. Step 3: Cross multiply
    587,587.40x = 881,640.30 × 271,881.80
  4. Step 4: Simplify right side
    587,587.40x = 239,701,951,716.54
  5. Step 5: Solve for x
    x = 239,701,951,716.54/587,587.40
  6. Step 6: Final answer
    x = 407,942.63

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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.