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Finding the Fourth Proportional to 593.15, 818.93 and 406.58

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Solution

The fourth proportional to 593.15, 818.93 and 406.58 is: 561.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    593.15 : 818.93 = 406.58 : x
  2. Step 2: Convert to fraction form
    593.15/818.93 = 406.58/x
  3. Step 3: Cross multiply
    593.15x = 818.93 × 406.58
  4. Step 4: Simplify right side
    593.15x = 332,963.62
  5. Step 5: Solve for x
    x = 332,963.62/593.15
  6. Step 6: Final answer
    x = 561.35

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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.