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Finding the Fourth Proportional to 549.65, 830.45 and 544.79

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Solution

The fourth proportional to 549.65, 830.45 and 544.79 is: 823.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    549.65 : 830.45 = 544.79 : x
  2. Step 2: Convert to fraction form
    549.65/830.45 = 544.79/x
  3. Step 3: Cross multiply
    549.65x = 830.45 × 544.79
  4. Step 4: Simplify right side
    549.65x = 452,424.29
  5. Step 5: Solve for x
    x = 452,424.29/549.65
  6. Step 6: Final answer
    x = 823.11

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.