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Finding the Fourth Proportional to 603.20, 903.38 and 591.86

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Solution

The fourth proportional to 603.20, 903.38 and 591.86 is: 886.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    603.20 : 903.38 = 591.86 : x
  2. Step 2: Convert to fraction form
    603.20/903.38 = 591.86/x
  3. Step 3: Cross multiply
    603.20x = 903.38 × 591.86
  4. Step 4: Simplify right side
    603.20x = 534,667.01
  5. Step 5: Solve for x
    x = 534,667.01/603.20
  6. Step 6: Final answer
    x = 886.39

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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.