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Finding the Fourth Proportional to 585.99, 808.65 and 324

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Solution

The fourth proportional to 585.99, 808.65 and 324 is: 447.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    585.99 : 808.65 = 324 : x
  2. Step 2: Convert to fraction form
    585.99/808.65 = 324/x
  3. Step 3: Cross multiply
    585.99x = 808.65 × 324
  4. Step 4: Simplify right side
    585.99x = 262,002.60
  5. Step 5: Solve for x
    x = 262,002.60/585.99
  6. Step 6: Final answer
    x = 447.11

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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.