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Finding the Fourth Proportional to 519,716, 717,208.44 and 281,252

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Solution

The fourth proportional to 519,716, 717,208.44 and 281,252 is: 388,127.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,716 : 717,208.44 = 281,252 : x
  2. Step 2: Convert to fraction form
    519,716/717,208.44 = 281,252/x
  3. Step 3: Cross multiply
    519,716x = 717,208.44 × 281,252
  4. Step 4: Simplify right side
    519,716x = 201,716,308,166.88
  5. Step 5: Solve for x
    x = 201,716,308,166.88/519,716
  6. Step 6: Final answer
    x = 388,127.95

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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.