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Finding the Fourth Proportional to 595.55, 821.60 and 374.62

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Solution

The fourth proportional to 595.55, 821.60 and 374.62 is: 516.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    595.55 : 821.60 = 374.62 : x
  2. Step 2: Convert to fraction form
    595.55/821.60 = 374.62/x
  3. Step 3: Cross multiply
    595.55x = 821.60 × 374.62
  4. Step 4: Simplify right side
    595.55x = 307,787.79
  5. Step 5: Solve for x
    x = 307,787.79/595.55
  6. Step 6: Final answer
    x = 516.81

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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.