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Finding the Fourth Proportional to 519,747, 717,250.92 and 281,283

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Solution

The fourth proportional to 519,747, 717,250.92 and 281,283 is: 388,170.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,747 : 717,250.92 = 281,283 : x
  2. Step 2: Convert to fraction form
    519,747/717,250.92 = 281,283/x
  3. Step 3: Cross multiply
    519,747x = 717,250.92 × 281,283
  4. Step 4: Simplify right side
    519,747x = 201,750,490,530.36
  5. Step 5: Solve for x
    x = 201,750,490,530.36/519,747
  6. Step 6: Final answer
    x = 388,170.57

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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.