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Finding the Fourth Proportional to 585.32, 878.52 and 554.08

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Solution

The fourth proportional to 585.32, 878.52 and 554.08 is: 831.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    585.32 : 878.52 = 554.08 : x
  2. Step 2: Convert to fraction form
    585.32/878.52 = 554.08/x
  3. Step 3: Cross multiply
    585.32x = 878.52 × 554.08
  4. Step 4: Simplify right side
    585.32x = 486,770.36
  5. Step 5: Solve for x
    x = 486,770.36/585.32
  6. Step 6: Final answer
    x = 831.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.