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Finding the Fourth Proportional to 582.67, 804.09 and 320.69

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Solution

The fourth proportional to 582.67, 804.09 and 320.69 is: 442.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    582.67 : 804.09 = 320.69 : x
  2. Step 2: Convert to fraction form
    582.67/804.09 = 320.69/x
  3. Step 3: Cross multiply
    582.67x = 804.09 × 320.69
  4. Step 4: Simplify right side
    582.67x = 257,861.61
  5. Step 5: Solve for x
    x = 257,861.61/582.67
  6. Step 6: Final answer
    x = 442.55

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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.