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Finding the Fourth Proportional to 554.52, 770.37 and 549.45

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Solution

The fourth proportional to 554.52, 770.37 and 549.45 is: 763.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.52 : 770.37 = 549.45 : x
  2. Step 2: Convert to fraction form
    554.52/770.37 = 549.45/x
  3. Step 3: Cross multiply
    554.52x = 770.37 × 549.45
  4. Step 4: Simplify right side
    554.52x = 423,279.80
  5. Step 5: Solve for x
    x = 423,279.80/554.52
  6. Step 6: Final answer
    x = 763.33

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.