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Finding the Fourth Proportional to 568.98, 849.36 and 486.36

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Solution

The fourth proportional to 568.98, 849.36 and 486.36 is: 726.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    568.98 : 849.36 = 486.36 : x
  2. Step 2: Convert to fraction form
    568.98/849.36 = 486.36/x
  3. Step 3: Cross multiply
    568.98x = 849.36 × 486.36
  4. Step 4: Simplify right side
    568.98x = 413,094.73
  5. Step 5: Solve for x
    x = 413,094.73/568.98
  6. Step 6: Final answer
    x = 726.03

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.