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Finding the Fourth Proportional to 549.52, 822.15 and 462.98

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Solution

The fourth proportional to 549.52, 822.15 and 462.98 is: 692.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    549.52 : 822.15 = 462.98 : x
  2. Step 2: Convert to fraction form
    549.52/822.15 = 462.98/x
  3. Step 3: Cross multiply
    549.52x = 822.15 × 462.98
  4. Step 4: Simplify right side
    549.52x = 380,641.06
  5. Step 5: Solve for x
    x = 380,641.06/549.52
  6. Step 6: Final answer
    x = 692.68

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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.