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Finding the Fourth Proportional to 593.79, 819.54 and 407.56

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Solution

The fourth proportional to 593.79, 819.54 and 407.56 is: 562.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    593.79 : 819.54 = 407.56 : x
  2. Step 2: Convert to fraction form
    593.79/819.54 = 407.56/x
  3. Step 3: Cross multiply
    593.79x = 819.54 × 407.56
  4. Step 4: Simplify right side
    593.79x = 334,007.62
  5. Step 5: Solve for x
    x = 334,007.62/593.79
  6. Step 6: Final answer
    x = 562.50

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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.