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Finding the Fourth Proportional to 593.16, 818.64 and 445.56

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Solution

The fourth proportional to 593.16, 818.64 and 445.56 is: 614.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    593.16 : 818.64 = 445.56 : x
  2. Step 2: Convert to fraction form
    593.16/818.64 = 445.56/x
  3. Step 3: Cross multiply
    593.16x = 818.64 × 445.56
  4. Step 4: Simplify right side
    593.16x = 364,753.24
  5. Step 5: Solve for x
    x = 364,753.24/593.16
  6. Step 6: Final answer
    x = 614.93

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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.