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Finding the Fourth Proportional to 593.40, 817.92 and 427.38

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Solution

The fourth proportional to 593.40, 817.92 and 427.38 is: 589.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    593.40 : 817.92 = 427.38 : x
  2. Step 2: Convert to fraction form
    593.40/817.92 = 427.38/x
  3. Step 3: Cross multiply
    593.40x = 817.92 × 427.38
  4. Step 4: Simplify right side
    593.40x = 349,562.65
  5. Step 5: Solve for x
    x = 349,562.65/593.40
  6. Step 6: Final answer
    x = 589.08

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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.