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Finding the Fourth Proportional to 594.53, 820.40 and 345.85

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Solution

The fourth proportional to 594.53, 820.40 and 345.85 is: 477.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    594.53 : 820.40 = 345.85 : x
  2. Step 2: Convert to fraction form
    594.53/820.40 = 345.85/x
  3. Step 3: Cross multiply
    594.53x = 820.40 × 345.85
  4. Step 4: Simplify right side
    594.53x = 283,732.86
  5. Step 5: Solve for x
    x = 283,732.86/594.53
  6. Step 6: Final answer
    x = 477.24

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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.