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Finding the Fourth Proportional to 547.58, 756.40 and 437.83

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Solution

The fourth proportional to 547.58, 756.40 and 437.83 is: 604.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    547.58 : 756.40 = 437.83 : x
  2. Step 2: Convert to fraction form
    547.58/756.40 = 437.83/x
  3. Step 3: Cross multiply
    547.58x = 756.40 × 437.83
  4. Step 4: Simplify right side
    547.58x = 331,174.61
  5. Step 5: Solve for x
    x = 331,174.61/547.58
  6. Step 6: Final answer
    x = 604.80

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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.