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Finding the Fourth Proportional to 576.96, 863.04 and 498.72

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Solution

The fourth proportional to 576.96, 863.04 and 498.72 is: 746.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    576.96 : 863.04 = 498.72 : x
  2. Step 2: Convert to fraction form
    576.96/863.04 = 498.72/x
  3. Step 3: Cross multiply
    576.96x = 863.04 × 498.72
  4. Step 4: Simplify right side
    576.96x = 430,415.31
  5. Step 5: Solve for x
    x = 430,415.31/576.96
  6. Step 6: Final answer
    x = 746.01

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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.