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Finding the Fourth Proportional to 633.01, 874.16 and 492.68

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Solution

The fourth proportional to 633.01, 874.16 and 492.68 is: 680.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.01 : 874.16 = 492.68 : x
  2. Step 2: Convert to fraction form
    633.01/874.16 = 492.68/x
  3. Step 3: Cross multiply
    633.01x = 874.16 × 492.68
  4. Step 4: Simplify right side
    633.01x = 430,678.01
  5. Step 5: Solve for x
    x = 430,678.01/633.01
  6. Step 6: Final answer
    x = 680.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.