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Finding the Fourth Proportional to 584.04, 805.86 and 490.60

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Solution

The fourth proportional to 584.04, 805.86 and 490.60 is: 676.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    584.04 : 805.86 = 490.60 : x
  2. Step 2: Convert to fraction form
    584.04/805.86 = 490.60/x
  3. Step 3: Cross multiply
    584.04x = 805.86 × 490.60
  4. Step 4: Simplify right side
    584.04x = 395,354.92
  5. Step 5: Solve for x
    x = 395,354.92/584.04
  6. Step 6: Final answer
    x = 676.93

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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.