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Finding the Fourth Proportional to 548.94, 818.85 and 529.98

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Solution

The fourth proportional to 548.94, 818.85 and 529.98 is: 790.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    548.94 : 818.85 = 529.98 : x
  2. Step 2: Convert to fraction form
    548.94/818.85 = 529.98/x
  3. Step 3: Cross multiply
    548.94x = 818.85 × 529.98
  4. Step 4: Simplify right side
    548.94x = 433,974.12
  5. Step 5: Solve for x
    x = 433,974.12/548.94
  6. Step 6: Final answer
    x = 790.57

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.