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Finding the Fourth Proportional to 529.73, 729.37 and 436.18

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Solution

The fourth proportional to 529.73, 729.37 and 436.18 is: 600.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.73 : 729.37 = 436.18 : x
  2. Step 2: Convert to fraction form
    529.73/729.37 = 436.18/x
  3. Step 3: Cross multiply
    529.73x = 729.37 × 436.18
  4. Step 4: Simplify right side
    529.73x = 318,136.61
  5. Step 5: Solve for x
    x = 318,136.61/529.73
  6. Step 6: Final answer
    x = 600.56

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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.