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Finding the Fourth Proportional to 577.46, 865.10 and 384.50

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Solution

The fourth proportional to 577.46, 865.10 and 384.50 is: 576.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    577.46 : 865.10 = 384.50 : x
  2. Step 2: Convert to fraction form
    577.46/865.10 = 384.50/x
  3. Step 3: Cross multiply
    577.46x = 865.10 × 384.50
  4. Step 4: Simplify right side
    577.46x = 332,630.95
  5. Step 5: Solve for x
    x = 332,630.95/577.46
  6. Step 6: Final answer
    x = 576.02

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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.