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Finding the Fourth Proportional to 669.87, 924.48 and 404.44

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Solution

The fourth proportional to 669.87, 924.48 and 404.44 is: 558.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    669.87 : 924.48 = 404.44 : x
  2. Step 2: Convert to fraction form
    669.87/924.48 = 404.44/x
  3. Step 3: Cross multiply
    669.87x = 924.48 × 404.44
  4. Step 4: Simplify right side
    669.87x = 373,899.58
  5. Step 5: Solve for x
    x = 373,899.58/669.87
  6. Step 6: Final answer
    x = 558.17

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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.