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Finding the Fourth Proportional to 595.72, 893.69 and 422.45

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Solution

The fourth proportional to 595.72, 893.69 and 422.45 is: 633.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    595.72 : 893.69 = 422.45 : x
  2. Step 2: Convert to fraction form
    595.72/893.69 = 422.45/x
  3. Step 3: Cross multiply
    595.72x = 893.69 × 422.45
  4. Step 4: Simplify right side
    595.72x = 377,534.87
  5. Step 5: Solve for x
    x = 377,534.87/595.72
  6. Step 6: Final answer
    x = 633.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.