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Finding the Fourth Proportional to 554.40, 827.31 and 493.05

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Solution

The fourth proportional to 554.40, 827.31 and 493.05 is: 735.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.40 : 827.31 = 493.05 : x
  2. Step 2: Convert to fraction form
    554.40/827.31 = 493.05/x
  3. Step 3: Cross multiply
    554.40x = 827.31 × 493.05
  4. Step 4: Simplify right side
    554.40x = 407,905.20
  5. Step 5: Solve for x
    x = 407,905.20/554.40
  6. Step 6: Final answer
    x = 735.76

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Double scale
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1.5x scale

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.