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Finding the Fourth Proportional to 673.40, 929.32 and 495.92

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Solution

The fourth proportional to 673.40, 929.32 and 495.92 is: 684.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    673.40 : 929.32 = 495.92 : x
  2. Step 2: Convert to fraction form
    673.40/929.32 = 495.92/x
  3. Step 3: Cross multiply
    673.40x = 929.32 × 495.92
  4. Step 4: Simplify right side
    673.40x = 460,868.37
  5. Step 5: Solve for x
    x = 460,868.37/673.40
  6. Step 6: Final answer
    x = 684.39

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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.