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Finding the Fourth Proportional to 519,766, 717,277.48 and 281,302

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Solution

The fourth proportional to 519,766, 717,277.48 and 281,302 is: 388,196.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,766 : 717,277.48 = 281,302 : x
  2. Step 2: Convert to fraction form
    519,766/717,277.48 = 281,302/x
  3. Step 3: Cross multiply
    519,766x = 717,277.48 × 281,302
  4. Step 4: Simplify right side
    519,766x = 201,771,589,678.96
  5. Step 5: Solve for x
    x = 201,771,589,678.96/519,766
  6. Step 6: Final answer
    x = 388,196.98

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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.