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Finding the Fourth Proportional to 673.00, 928.91 and 411.23

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Solution

The fourth proportional to 673.00, 928.91 and 411.23 is: 567.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    673.00 : 928.91 = 411.23 : x
  2. Step 2: Convert to fraction form
    673.00/928.91 = 411.23/x
  3. Step 3: Cross multiply
    673.00x = 928.91 × 411.23
  4. Step 4: Simplify right side
    673.00x = 381,999.01
  5. Step 5: Solve for x
    x = 381,999.01/673.00
  6. Step 6: Final answer
    x = 567.61

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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.