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Finding the Fourth Proportional to 519,734, 717,232.92 and 281,270

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Solution

The fourth proportional to 519,734, 717,232.92 and 281,270 is: 388,152.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,734 : 717,232.92 = 281,270 : x
  2. Step 2: Convert to fraction form
    519,734/717,232.92 = 281,270/x
  3. Step 3: Cross multiply
    519,734x = 717,232.92 × 281,270
  4. Step 4: Simplify right side
    519,734x = 201,736,103,408.40
  5. Step 5: Solve for x
    x = 201,736,103,408.40/519,734
  6. Step 6: Final answer
    x = 388,152.60

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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.