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Finding the Fourth Proportional to 864.54, 1,193.04 and 471.54

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Solution

The fourth proportional to 864.54, 1,193.04 and 471.54 is: 650.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    864.54 : 1,193.04 = 471.54 : x
  2. Step 2: Convert to fraction form
    864.54/1,193.04 = 471.54/x
  3. Step 3: Cross multiply
    864.54x = 1,193.04 × 471.54
  4. Step 4: Simplify right side
    864.54x = 562,566.08
  5. Step 5: Solve for x
    x = 562,566.08/864.54
  6. Step 6: Final answer
    x = 650.71

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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.