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Finding the Fourth Proportional to 554.15, 826.93 and 492.79

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Solution

The fourth proportional to 554.15, 826.93 and 492.79 is: 735.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.15 : 826.93 = 492.79 : x
  2. Step 2: Convert to fraction form
    554.15/826.93 = 492.79/x
  3. Step 3: Cross multiply
    554.15x = 826.93 × 492.79
  4. Step 4: Simplify right side
    554.15x = 407,502.83
  5. Step 5: Solve for x
    x = 407,502.83/554.15
  6. Step 6: Final answer
    x = 735.37

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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.