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Finding the Fourth Proportional to 585.08, 806.92 and 438.06

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Solution

The fourth proportional to 585.08, 806.92 and 438.06 is: 604.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    585.08 : 806.92 = 438.06 : x
  2. Step 2: Convert to fraction form
    585.08/806.92 = 438.06/x
  3. Step 3: Cross multiply
    585.08x = 806.92 × 438.06
  4. Step 4: Simplify right side
    585.08x = 353,478.28
  5. Step 5: Solve for x
    x = 353,478.28/585.08
  6. Step 6: Final answer
    x = 604.16

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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.