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Finding the Fourth Proportional to 593, 818.10 and 487.88

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Solution

The fourth proportional to 593, 818.10 and 487.88 is: 673.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    593 : 818.10 = 487.88 : x
  2. Step 2: Convert to fraction form
    593/818.10 = 487.88/x
  3. Step 3: Cross multiply
    593x = 818.10 × 487.88
  4. Step 4: Simplify right side
    593x = 399,134.63
  5. Step 5: Solve for x
    x = 399,134.63/593
  6. Step 6: Final answer
    x = 673.08

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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.