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Finding the Fourth Proportional to 379,856.94, 523,689.60 and 243,654.44

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Solution

The fourth proportional to 379,856.94, 523,689.60 and 243,654.44 is: 335,914.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,856.94 : 523,689.60 = 243,654.44 : x
  2. Step 2: Convert to fraction form
    379,856.94/523,689.60 = 243,654.44/x
  3. Step 3: Cross multiply
    379,856.94x = 523,689.60 × 243,654.44
  4. Step 4: Simplify right side
    379,856.94x = 127,599,293,603.38
  5. Step 5: Solve for x
    x = 127,599,293,603.38/379,856.94
  6. Step 6: Final answer
    x = 335,914.08

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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.