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Finding the Fourth Proportional to 544.60, 816.90 and 521.37

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Solution

The fourth proportional to 544.60, 816.90 and 521.37 is: 782.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    544.60 : 816.90 = 521.37 : x
  2. Step 2: Convert to fraction form
    544.60/816.90 = 521.37/x
  3. Step 3: Cross multiply
    544.60x = 816.90 × 521.37
  4. Step 4: Simplify right side
    544.60x = 425,907.15
  5. Step 5: Solve for x
    x = 425,907.15/544.60
  6. Step 6: Final answer
    x = 782.06

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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.