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Finding the Fourth Proportional to 673.43, 928.62 and 496.13

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Solution

The fourth proportional to 673.43, 928.62 and 496.13 is: 684.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    673.43 : 928.62 = 496.13 : x
  2. Step 2: Convert to fraction form
    673.43/928.62 = 496.13/x
  3. Step 3: Cross multiply
    673.43x = 928.62 × 496.13
  4. Step 4: Simplify right side
    673.43x = 460,711.60
  5. Step 5: Solve for x
    x = 460,711.60/673.43
  6. Step 6: Final answer
    x = 684.13

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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.