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Finding the Fourth Proportional to 399.58, 595.80 and 399.04

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Solution

The fourth proportional to 399.58, 595.80 and 399.04 is: 594.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    399.58 : 595.80 = 399.04 : x
  2. Step 2: Convert to fraction form
    399.58/595.80 = 399.04/x
  3. Step 3: Cross multiply
    399.58x = 595.80 × 399.04
  4. Step 4: Simplify right side
    399.58x = 237,748.03
  5. Step 5: Solve for x
    x = 237,748.03/399.58
  6. Step 6: Final answer
    x = 594.99

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.