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Finding the Fourth Proportional to 673.80, 928.74 and 541.32

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Solution

The fourth proportional to 673.80, 928.74 and 541.32 is: 746.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    673.80 : 928.74 = 541.32 : x
  2. Step 2: Convert to fraction form
    673.80/928.74 = 541.32/x
  3. Step 3: Cross multiply
    673.80x = 928.74 × 541.32
  4. Step 4: Simplify right side
    673.80x = 502,745.54
  5. Step 5: Solve for x
    x = 502,745.54/673.80
  6. Step 6: Final answer
    x = 746.13

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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.