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Finding the Fourth Proportional to 701,187.54, 967,638.72 and 378,897.64

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Solution

The fourth proportional to 701,187.54, 967,638.72 and 378,897.64 is: 522,878.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,187.54 : 967,638.72 = 378,897.64 : x
  2. Step 2: Convert to fraction form
    701,187.54/967,638.72 = 378,897.64/x
  3. Step 3: Cross multiply
    701,187.54x = 967,638.72 × 378,897.64
  4. Step 4: Simplify right side
    701,187.54x = 366,636,027,380.62
  5. Step 5: Solve for x
    x = 366,636,027,380.62/701,187.54
  6. Step 6: Final answer
    x = 522,878.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.