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Finding the Fourth Proportional to 673.54, 929.55 and 411.82

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Solution

The fourth proportional to 673.54, 929.55 and 411.82 is: 568.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    673.54 : 929.55 = 411.82 : x
  2. Step 2: Convert to fraction form
    673.54/929.55 = 411.82/x
  3. Step 3: Cross multiply
    673.54x = 929.55 × 411.82
  4. Step 4: Simplify right side
    673.54x = 382,807.28
  5. Step 5: Solve for x
    x = 382,807.28/673.54
  6. Step 6: Final answer
    x = 568.35

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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.