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Finding the Fourth Proportional to 673.84, 929.27 and 579.28

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Solution

The fourth proportional to 673.84, 929.27 and 579.28 is: 798.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    673.84 : 929.27 = 579.28 : x
  2. Step 2: Convert to fraction form
    673.84/929.27 = 579.28/x
  3. Step 3: Cross multiply
    673.84x = 929.27 × 579.28
  4. Step 4: Simplify right side
    673.84x = 538,307.53
  5. Step 5: Solve for x
    x = 538,307.53/673.84
  6. Step 6: Final answer
    x = 798.87

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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.